./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/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_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/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_9ff95e06-5239-423c-a039-d6d229550b88/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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- 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 11:15:41,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:15:41,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:15:41,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:15:41,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:15:41,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:15:41,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:15:41,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:15:41,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:15:41,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:15:41,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:15:41,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:15:41,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:15:41,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:15:41,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:15:41,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:15:41,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:15:41,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:15:41,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:15:41,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:15:41,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:15:41,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:15:41,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:15:41,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:15:41,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:15:41,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:15:41,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:15:41,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:15:41,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:15:41,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:15:41,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:15:41,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:15:41,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:15:41,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:15:41,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:15:41,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:15:41,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:15:41,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:15:41,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:15:41,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:15:41,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:15:41,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:15:41,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:15:41,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:15:41,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:15:41,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:15:41,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:15:42,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:15:42,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:15:42,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:15:42,001 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:15:42,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:15:42,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:15:42,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:15:42,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:15:42,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:15:42,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:15:42,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:15:42,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:15:42,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:15:42,004 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:15:42,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:15:42,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:15:42,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:15:42,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:15:42,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:15:42,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:15:42,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:15:42,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:15:42,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:15:42,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:15:42,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:15:42,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:15:42,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:15:42,008 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:15:42,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:15:42,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:15:42,008 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_9ff95e06-5239-423c-a039-d6d229550b88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-20 11:15:42,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:15:42,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:15:42,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:15:42,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:15:42,306 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:15:42,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-20 11:15:45,617 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:15:45,903 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:15:45,904 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-20 11:15:45,932 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/data/873dbf6ce/b6ff04a0e7c4492483132bf8f17b114e/FLAG18eeb7d1f [2022-11-20 11:15:45,948 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/data/873dbf6ce/b6ff04a0e7c4492483132bf8f17b114e [2022-11-20 11:15:45,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:15:45,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:15:45,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:15:45,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:15:45,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:15:45,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:45" (1/1) ... [2022-11-20 11:15:45,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232d2067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:45, skipping insertion in model container [2022-11-20 11:15:45,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:15:45" (1/1) ... [2022-11-20 11:15:45,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:15:46,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:15:46,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:15:46,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:15:46,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:15:46,875 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:15:46,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46 WrapperNode [2022-11-20 11:15:46,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:15:46,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:15:46,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:15:46,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:15:46,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:46,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:46,992 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2022-11-20 11:15:46,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:15:46,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:15:46,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:15:46,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:15:47,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:15:47,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:15:47,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:15:47,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:15:47,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (1/1) ... [2022-11-20 11:15:47,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:15:47,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:15:47,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:15:47,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff95e06-5239-423c-a039-d6d229550b88/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:15:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:15:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:15:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:15:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:15:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:15:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:15:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:15:47,149 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 11:15:47,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:15:47,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:15:47,947 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:15:47,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:15:47,958 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:15:47,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:15:47 BoogieIcfgContainer [2022-11-20 11:15:47,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:15:47,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:15:47,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:15:47,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:15:47,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:15:45" (1/3) ... [2022-11-20 11:15:47,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fde6169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:15:47, skipping insertion in model container [2022-11-20 11:15:47,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:15:46" (2/3) ... [2022-11-20 11:15:47,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fde6169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:15:47, skipping insertion in model container [2022-11-20 11:15:47,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:15:47" (3/3) ... [2022-11-20 11:15:47,972 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-20 11:15:47,986 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:15:47,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:15:47,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-20 11:15:47,998 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:15:48,140 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:15:48,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 276 transitions, 557 flow [2022-11-20 11:15:48,387 INFO L130 PetriNetUnfolder]: 0/275 cut-off events. [2022-11-20 11:15:48,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:48,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:15:48,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 276 transitions, 557 flow [2022-11-20 11:15:48,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 275 transitions, 553 flow [2022-11-20 11:15:48,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:15:48,430 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;@232d737f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:15:48,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-20 11:15:48,444 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-20 11:15:48,444 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:48,445 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:48,445 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] [2022-11-20 11:15:48,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash 453973923, now seen corresponding path program 1 times [2022-11-20 11:15:48,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:48,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293835259] [2022-11-20 11:15:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:48,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:49,366 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 11:15:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293835259] [2022-11-20 11:15:49,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293835259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:49,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:49,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612868403] [2022-11-20 11:15:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:49,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:49,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:49,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-20 11:15:49,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states 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 11:15:49,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:49,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-20 11:15:49,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:50,761 INFO L130 PetriNetUnfolder]: 864/2835 cut-off events. [2022-11-20 11:15:50,761 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:15:50,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 2835 events. 864/2835 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17865 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4476. Up to 1838 conditions per place. [2022-11-20 11:15:50,787 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 109 selfloop transitions, 15 changer transitions 0/272 dead transitions. [2022-11-20 11:15:50,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 272 transitions, 795 flow [2022-11-20 11:15:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:15:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1021 transitions. [2022-11-20 11:15:50,813 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6165458937198067 [2022-11-20 11:15:50,813 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1021 transitions. [2022-11-20 11:15:50,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1021 transitions. [2022-11-20 11:15:50,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:50,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1021 transitions. [2022-11-20 11:15:50,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states 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 11:15:50,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:50,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:50,843 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 553 flow. Second operand 6 states and 1021 transitions. [2022-11-20 11:15:50,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 272 transitions, 795 flow [2022-11-20 11:15:50,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 272 transitions, 794 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:15:50,861 INFO L231 Difference]: Finished difference. Result has 280 places, 272 transitions, 576 flow [2022-11-20 11:15:50,863 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=280, PETRI_TRANSITIONS=272} [2022-11-20 11:15:50,870 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-20 11:15:50,870 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 272 transitions, 576 flow [2022-11-20 11:15:50,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states 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 11:15:50,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:50,872 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] [2022-11-20 11:15:50,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:15:50,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:50,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1373225779, now seen corresponding path program 1 times [2022-11-20 11:15:50,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:50,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632427430] [2022-11-20 11:15:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:50,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:51,434 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 11:15:51,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:51,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632427430] [2022-11-20 11:15:51,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632427430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:51,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:51,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338804954] [2022-11-20 11:15:51,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:51,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:51,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:51,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:51,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 276 [2022-11-20 11:15:51,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 272 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:51,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:51,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 276 [2022-11-20 11:15:51,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:52,254 INFO L130 PetriNetUnfolder]: 864/2832 cut-off events. [2022-11-20 11:15:52,255 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:15:52,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4701 conditions, 2832 events. 864/2832 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17889 event pairs, 864 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 4518. Up to 1835 conditions per place. [2022-11-20 11:15:52,270 INFO L137 encePairwiseOnDemand]: 258/276 looper letters, 106 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2022-11-20 11:15:52,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 269 transitions, 812 flow [2022-11-20 11:15:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:15:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-11-20 11:15:52,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147342995169082 [2022-11-20 11:15:52,274 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-11-20 11:15:52,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-11-20 11:15:52,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:52,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-11-20 11:15:52,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states 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 11:15:52,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:52,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:52,284 INFO L175 Difference]: Start difference. First operand has 280 places, 272 transitions, 576 flow. Second operand 6 states and 1018 transitions. [2022-11-20 11:15:52,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 269 transitions, 812 flow [2022-11-20 11:15:52,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 269 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:15:52,295 INFO L231 Difference]: Finished difference. Result has 277 places, 269 transitions, 570 flow [2022-11-20 11:15:52,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=277, PETRI_TRANSITIONS=269} [2022-11-20 11:15:52,299 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -2 predicate places. [2022-11-20 11:15:52,299 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 269 transitions, 570 flow [2022-11-20 11:15:52,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:52,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:52,300 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:15:52,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:15:52,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1202444287, now seen corresponding path program 1 times [2022-11-20 11:15:52,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:52,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451599431] [2022-11-20 11:15:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:52,434 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 11:15:52,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:52,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451599431] [2022-11-20 11:15:52,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451599431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:52,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:52,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:15:52,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872349672] [2022-11-20 11:15:52,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:52,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:15:52,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:52,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:15:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:15:52,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-20 11:15:52,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 269 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 11:15:52,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:52,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-20 11:15:52,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:52,527 INFO L130 PetriNetUnfolder]: 9/496 cut-off events. [2022-11-20 11:15:52,527 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:52,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 496 events. 9/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1501 event pairs, 9 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-20 11:15:52,530 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2022-11-20 11:15:52,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 268 transitions, 604 flow [2022-11-20 11:15:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:15:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:15:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-20 11:15:52,532 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-20 11:15:52,532 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-20 11:15:52,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-20 11:15:52,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:52,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-20 11:15:52,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states 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 11:15:52,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:52,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:52,538 INFO L175 Difference]: Start difference. First operand has 277 places, 269 transitions, 570 flow. Second operand 3 states and 790 transitions. [2022-11-20 11:15:52,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 268 transitions, 604 flow [2022-11-20 11:15:52,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 574 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:15:52,544 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 542 flow [2022-11-20 11:15:52,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2022-11-20 11:15:52,546 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2022-11-20 11:15:52,546 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 542 flow [2022-11-20 11:15:52,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 11:15:52,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:52,547 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 11:15:52,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:15:52,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1560437014, now seen corresponding path program 1 times [2022-11-20 11:15:52,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:52,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302767013] [2022-11-20 11:15:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:52,599 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 11:15:52,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:52,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302767013] [2022-11-20 11:15:52,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302767013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:52,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:52,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:15:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123752945] [2022-11-20 11:15:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:52,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:15:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:52,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:15:52,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:15:52,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-20 11:15:52,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 11:15:52,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:52,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-20 11:15:52,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:52,677 INFO L130 PetriNetUnfolder]: 4/433 cut-off events. [2022-11-20 11:15:52,678 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:15:52,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 433 events. 4/433 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1082 event pairs, 4 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 395. Up to 17 conditions per place. [2022-11-20 11:15:52,680 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/264 dead transitions. [2022-11-20 11:15:52,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 556 flow [2022-11-20 11:15:52,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:15:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:15:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-20 11:15:52,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-20 11:15:52,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-20 11:15:52,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-20 11:15:52,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:52,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-20 11:15:52,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 11:15:52,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:52,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:52,688 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 542 flow. Second operand 3 states and 795 transitions. [2022-11-20 11:15:52,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 556 flow [2022-11-20 11:15:52,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 264 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:15:52,694 INFO L231 Difference]: Finished difference. Result has 269 places, 264 transitions, 532 flow [2022-11-20 11:15:52,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=269, PETRI_TRANSITIONS=264} [2022-11-20 11:15:52,695 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -10 predicate places. [2022-11-20 11:15:52,695 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 264 transitions, 532 flow [2022-11-20 11:15:52,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 11:15:52,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:52,696 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:15:52,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:15:52,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:52,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2076172133, now seen corresponding path program 1 times [2022-11-20 11:15:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:52,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155471137] [2022-11-20 11:15:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:52,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:53,373 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 11:15:53,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:53,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155471137] [2022-11-20 11:15:53,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155471137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:53,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:53,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:53,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795656518] [2022-11-20 11:15:53,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:53,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:53,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:53,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:53,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:53,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-20 11:15:53,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 264 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:53,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:53,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-20 11:15:53,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:54,273 INFO L130 PetriNetUnfolder]: 925/2998 cut-off events. [2022-11-20 11:15:54,273 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:54,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4965 conditions, 2998 events. 925/2998 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19040 event pairs, 925 based on Foata normal form. 0/2634 useless extension candidates. Maximal degree in co-relation 4890. Up to 1957 conditions per place. [2022-11-20 11:15:54,289 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 106 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2022-11-20 11:15:54,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 752 flow [2022-11-20 11:15:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:15:54,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1060 transitions. [2022-11-20 11:15:54,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6400966183574879 [2022-11-20 11:15:54,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1060 transitions. [2022-11-20 11:15:54,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1060 transitions. [2022-11-20 11:15:54,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:54,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1060 transitions. [2022-11-20 11:15:54,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.66666666666666) internal successors, (1060), 6 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states 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 11:15:54,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:54,303 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:54,303 INFO L175 Difference]: Start difference. First operand has 269 places, 264 transitions, 532 flow. Second operand 6 states and 1060 transitions. [2022-11-20 11:15:54,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 752 flow [2022-11-20 11:15:54,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:15:54,309 INFO L231 Difference]: Finished difference. Result has 272 places, 263 transitions, 539 flow [2022-11-20 11:15:54,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=272, PETRI_TRANSITIONS=263} [2022-11-20 11:15:54,313 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -7 predicate places. [2022-11-20 11:15:54,313 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 263 transitions, 539 flow [2022-11-20 11:15:54,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:54,314 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:54,315 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] [2022-11-20 11:15:54,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:15:54,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:54,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash -792736779, now seen corresponding path program 1 times [2022-11-20 11:15:54,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:54,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209893428] [2022-11-20 11:15:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:54,415 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 11:15:54,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:54,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209893428] [2022-11-20 11:15:54,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209893428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:54,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:54,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:15:54,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145273670] [2022-11-20 11:15:54,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:54,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:15:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:54,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:15:54,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:15:54,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 276 [2022-11-20 11:15:54,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 263 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 11:15:54,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:54,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 276 [2022-11-20 11:15:54,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:54,502 INFO L130 PetriNetUnfolder]: 9/395 cut-off events. [2022-11-20 11:15:54,502 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:54,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 395 events. 9/395 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 781 event pairs, 9 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 379. Up to 35 conditions per place. [2022-11-20 11:15:54,504 INFO L137 encePairwiseOnDemand]: 273/276 looper letters, 16 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2022-11-20 11:15:54,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 262 transitions, 573 flow [2022-11-20 11:15:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:15:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:15:54,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-20 11:15:54,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9541062801932367 [2022-11-20 11:15:54,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-20 11:15:54,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-20 11:15:54,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:54,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-20 11:15:54,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states 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 11:15:54,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:54,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:54,515 INFO L175 Difference]: Start difference. First operand has 272 places, 263 transitions, 539 flow. Second operand 3 states and 790 transitions. [2022-11-20 11:15:54,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 262 transitions, 573 flow [2022-11-20 11:15:54,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 262 transitions, 563 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:15:54,520 INFO L231 Difference]: Finished difference. Result has 268 places, 262 transitions, 531 flow [2022-11-20 11:15:54,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=268, PETRI_TRANSITIONS=262} [2022-11-20 11:15:54,524 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -11 predicate places. [2022-11-20 11:15:54,524 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 262 transitions, 531 flow [2022-11-20 11:15:54,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 11:15:54,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:54,525 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 11:15:54,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:15:54,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:54,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:54,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1808203472, now seen corresponding path program 1 times [2022-11-20 11:15:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:54,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591684757] [2022-11-20 11:15:54,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:54,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:54,608 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 11:15:54,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:54,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591684757] [2022-11-20 11:15:54,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591684757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:54,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:54,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:15:54,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069822714] [2022-11-20 11:15:54,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:54,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:15:54,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:15:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:15:54,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 276 [2022-11-20 11:15:54,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 262 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 11:15:54,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:54,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 276 [2022-11-20 11:15:54,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:54,738 INFO L130 PetriNetUnfolder]: 4/351 cut-off events. [2022-11-20 11:15:54,738 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:15:54,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 351 events. 4/351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 529 event pairs, 4 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 316. Up to 17 conditions per place. [2022-11-20 11:15:54,740 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 10 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2022-11-20 11:15:54,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 258 transitions, 545 flow [2022-11-20 11:15:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:15:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:15:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-11-20 11:15:54,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601449275362319 [2022-11-20 11:15:54,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-11-20 11:15:54,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-11-20 11:15:54,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:54,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-11-20 11:15:54,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 11:15:54,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:54,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:15:54,749 INFO L175 Difference]: Start difference. First operand has 268 places, 262 transitions, 531 flow. Second operand 3 states and 795 transitions. [2022-11-20 11:15:54,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 258 transitions, 545 flow [2022-11-20 11:15:54,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 258 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:15:54,759 INFO L231 Difference]: Finished difference. Result has 264 places, 258 transitions, 521 flow [2022-11-20 11:15:54,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=264, PETRI_TRANSITIONS=258} [2022-11-20 11:15:54,760 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -15 predicate places. [2022-11-20 11:15:54,760 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 258 transitions, 521 flow [2022-11-20 11:15:54,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 11:15:54,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:54,761 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:54,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:15:54,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:54,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:54,762 INFO L85 PathProgramCache]: Analyzing trace with hash -367297598, now seen corresponding path program 1 times [2022-11-20 11:15:54,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:54,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837518498] [2022-11-20 11:15:54,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:54,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:55,480 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 11:15:55,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:55,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837518498] [2022-11-20 11:15:55,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837518498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:55,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:55,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284076803] [2022-11-20 11:15:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:55,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:55,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:55,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-20 11:15:55,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 258 transitions, 521 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 11:15:55,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:55,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-20 11:15:55,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:56,252 INFO L130 PetriNetUnfolder]: 925/2909 cut-off events. [2022-11-20 11:15:56,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:15:56,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4876 conditions, 2909 events. 925/2909 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18239 event pairs, 925 based on Foata normal form. 0/2579 useless extension candidates. Maximal degree in co-relation 4802. Up to 1956 conditions per place. [2022-11-20 11:15:56,272 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 105 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2022-11-20 11:15:56,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 739 flow [2022-11-20 11:15:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:15:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-20 11:15:56,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6394927536231884 [2022-11-20 11:15:56,277 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-20 11:15:56,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-20 11:15:56,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:56,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-20 11:15:56,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states 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 11:15:56,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:56,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:56,287 INFO L175 Difference]: Start difference. First operand has 264 places, 258 transitions, 521 flow. Second operand 6 states and 1059 transitions. [2022-11-20 11:15:56,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 739 flow [2022-11-20 11:15:56,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 257 transitions, 738 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:15:56,294 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 528 flow [2022-11-20 11:15:56,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-11-20 11:15:56,298 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -12 predicate places. [2022-11-20 11:15:56,298 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 528 flow [2022-11-20 11:15:56,299 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 11:15:56,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:56,299 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] [2022-11-20 11:15:56,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:15:56,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash 333101359, now seen corresponding path program 1 times [2022-11-20 11:15:56,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:56,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146210301] [2022-11-20 11:15:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:57,104 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 11:15:57,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146210301] [2022-11-20 11:15:57,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146210301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:57,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:57,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:57,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634632356] [2022-11-20 11:15:57,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:57,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:57,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:57,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-20 11:15:57,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:57,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:57,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-20 11:15:57,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:15:58,455 INFO L130 PetriNetUnfolder]: 1392/4446 cut-off events. [2022-11-20 11:15:58,455 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:15:58,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7395 conditions, 4446 events. 1392/4446 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32542 event pairs, 181 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 7321. Up to 1396 conditions per place. [2022-11-20 11:15:58,494 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 210 selfloop transitions, 38 changer transitions 0/398 dead transitions. [2022-11-20 11:15:58,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 398 transitions, 1306 flow [2022-11-20 11:15:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:15:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1216 transitions. [2022-11-20 11:15:58,498 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7342995169082126 [2022-11-20 11:15:58,498 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1216 transitions. [2022-11-20 11:15:58,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1216 transitions. [2022-11-20 11:15:58,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:15:58,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1216 transitions. [2022-11-20 11:15:58,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states 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 11:15:58,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:58,507 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:15:58,507 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 528 flow. Second operand 6 states and 1216 transitions. [2022-11-20 11:15:58,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 398 transitions, 1306 flow [2022-11-20 11:15:58,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 398 transitions, 1296 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:15:58,516 INFO L231 Difference]: Finished difference. Result has 271 places, 293 transitions, 776 flow [2022-11-20 11:15:58,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=271, PETRI_TRANSITIONS=293} [2022-11-20 11:15:58,518 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -8 predicate places. [2022-11-20 11:15:58,518 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 293 transitions, 776 flow [2022-11-20 11:15:58,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:15:58,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:15:58,520 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 11:15:58,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:15:58,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:15:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2113254963, now seen corresponding path program 1 times [2022-11-20 11:15:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:15:58,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817652001] [2022-11-20 11:15:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:15:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:59,229 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 11:15:59,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:15:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817652001] [2022-11-20 11:15:59,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817652001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:59,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:59,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:15:59,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038401681] [2022-11-20 11:15:59,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:59,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:15:59,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:15:59,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:15:59,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:15:59,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-20 11:15:59,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 293 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states 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 11:15:59,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:15:59,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-20 11:15:59,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:00,610 INFO L130 PetriNetUnfolder]: 1425/4488 cut-off events. [2022-11-20 11:16:00,610 INFO L131 PetriNetUnfolder]: For 1087/1090 co-relation queries the response was YES. [2022-11-20 11:16:00,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8610 conditions, 4488 events. 1425/4488 cut-off events. For 1087/1090 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 32426 event pairs, 1015 based on Foata normal form. 0/4061 useless extension candidates. Maximal degree in co-relation 8534. Up to 2720 conditions per place. [2022-11-20 11:16:00,646 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 227 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2022-11-20 11:16:00,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 384 transitions, 1462 flow [2022-11-20 11:16:00,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1174 transitions. [2022-11-20 11:16:00,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7089371980676329 [2022-11-20 11:16:00,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1174 transitions. [2022-11-20 11:16:00,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1174 transitions. [2022-11-20 11:16:00,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:00,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1174 transitions. [2022-11-20 11:16:00,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 11:16:00,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:00,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:00,659 INFO L175 Difference]: Start difference. First operand has 271 places, 293 transitions, 776 flow. Second operand 6 states and 1174 transitions. [2022-11-20 11:16:00,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 384 transitions, 1462 flow [2022-11-20 11:16:00,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 384 transitions, 1462 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:00,672 INFO L231 Difference]: Finished difference. Result has 275 places, 292 transitions, 784 flow [2022-11-20 11:16:00,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=275, PETRI_TRANSITIONS=292} [2022-11-20 11:16:00,674 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, -4 predicate places. [2022-11-20 11:16:00,675 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 784 flow [2022-11-20 11:16:00,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states 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 11:16:00,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:00,676 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 11:16:00,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:16:00,678 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:00,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:00,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1391679481, now seen corresponding path program 1 times [2022-11-20 11:16:00,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:00,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655242893] [2022-11-20 11:16:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:01,287 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 11:16:01,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:01,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655242893] [2022-11-20 11:16:01,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655242893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:01,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:01,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:01,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592376933] [2022-11-20 11:16:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:01,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:01,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:01,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 276 [2022-11-20 11:16:01,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states 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 11:16:01,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:01,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 276 [2022-11-20 11:16:01,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:03,311 INFO L130 PetriNetUnfolder]: 1814/5618 cut-off events. [2022-11-20 11:16:03,311 INFO L131 PetriNetUnfolder]: For 1369/1375 co-relation queries the response was YES. [2022-11-20 11:16:03,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 5618 events. 1814/5618 cut-off events. For 1369/1375 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43378 event pairs, 427 based on Foata normal form. 0/5184 useless extension candidates. Maximal degree in co-relation 10761. Up to 2162 conditions per place. [2022-11-20 11:16:03,352 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 253 selfloop transitions, 71 changer transitions 0/471 dead transitions. [2022-11-20 11:16:03,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 471 transitions, 2046 flow [2022-11-20 11:16:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1209 transitions. [2022-11-20 11:16:03,356 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.730072463768116 [2022-11-20 11:16:03,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1209 transitions. [2022-11-20 11:16:03,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1209 transitions. [2022-11-20 11:16:03,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:03,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1209 transitions. [2022-11-20 11:16:03,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.5) internal successors, (1209), 6 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:03,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:03,364 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:03,364 INFO L175 Difference]: Start difference. First operand has 275 places, 292 transitions, 784 flow. Second operand 6 states and 1209 transitions. [2022-11-20 11:16:03,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 471 transitions, 2046 flow [2022-11-20 11:16:03,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 471 transitions, 1996 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:16:03,378 INFO L231 Difference]: Finished difference. Result has 280 places, 361 transitions, 1432 flow [2022-11-20 11:16:03,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1432, PETRI_PLACES=280, PETRI_TRANSITIONS=361} [2022-11-20 11:16:03,379 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2022-11-20 11:16:03,380 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 361 transitions, 1432 flow [2022-11-20 11:16:03,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states 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 11:16:03,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:03,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:03,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:16:03,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:03,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash -804476488, now seen corresponding path program 1 times [2022-11-20 11:16:03,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:03,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972490572] [2022-11-20 11:16:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:03,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:04,028 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 11:16:04,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:04,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972490572] [2022-11-20 11:16:04,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972490572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:04,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:04,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:04,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31481808] [2022-11-20 11:16:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:04,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:04,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-20 11:16:04,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 361 transitions, 1432 flow. Second operand has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:04,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:04,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-20 11:16:04,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:05,733 INFO L130 PetriNetUnfolder]: 1933/6117 cut-off events. [2022-11-20 11:16:05,734 INFO L131 PetriNetUnfolder]: For 3586/3620 co-relation queries the response was YES. [2022-11-20 11:16:05,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14041 conditions, 6117 events. 1933/6117 cut-off events. For 3586/3620 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 47986 event pairs, 1016 based on Foata normal form. 0/5711 useless extension candidates. Maximal degree in co-relation 13960. Up to 3830 conditions per place. [2022-11-20 11:16:05,791 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 240 selfloop transitions, 89 changer transitions 0/480 dead transitions. [2022-11-20 11:16:05,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 480 transitions, 2610 flow [2022-11-20 11:16:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:05,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1173 transitions. [2022-11-20 11:16:05,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2022-11-20 11:16:05,797 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1173 transitions. [2022-11-20 11:16:05,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1173 transitions. [2022-11-20 11:16:05,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:05,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1173 transitions. [2022-11-20 11:16:05,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states 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 11:16:05,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:05,824 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:05,824 INFO L175 Difference]: Start difference. First operand has 280 places, 361 transitions, 1432 flow. Second operand 6 states and 1173 transitions. [2022-11-20 11:16:05,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 480 transitions, 2610 flow [2022-11-20 11:16:05,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 480 transitions, 2610 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:05,848 INFO L231 Difference]: Finished difference. Result has 290 places, 445 transitions, 2234 flow [2022-11-20 11:16:05,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2234, PETRI_PLACES=290, PETRI_TRANSITIONS=445} [2022-11-20 11:16:05,849 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2022-11-20 11:16:05,850 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 445 transitions, 2234 flow [2022-11-20 11:16:05,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:16:05,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:05,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:05,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:16:05,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1371611843, now seen corresponding path program 1 times [2022-11-20 11:16:05,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:05,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231396020] [2022-11-20 11:16:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:05,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:06,066 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 11:16:06,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:06,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231396020] [2022-11-20 11:16:06,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231396020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:06,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:06,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:16:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738963870] [2022-11-20 11:16:06,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:06,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:16:06,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:06,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:16:06,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:16:06,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 276 [2022-11-20 11:16:06,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 445 transitions, 2234 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 11:16:06,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:06,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 276 [2022-11-20 11:16:06,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:06,460 INFO L130 PetriNetUnfolder]: 286/1908 cut-off events. [2022-11-20 11:16:06,460 INFO L131 PetriNetUnfolder]: For 1114/1188 co-relation queries the response was YES. [2022-11-20 11:16:06,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1908 events. 286/1908 cut-off events. For 1114/1188 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13002 event pairs, 25 based on Foata normal form. 4/1826 useless extension candidates. Maximal degree in co-relation 3840. Up to 272 conditions per place. [2022-11-20 11:16:06,475 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 15 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2022-11-20 11:16:06,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 385 transitions, 1712 flow [2022-11-20 11:16:06,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:16:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:16:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 806 transitions. [2022-11-20 11:16:06,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9734299516908212 [2022-11-20 11:16:06,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 806 transitions. [2022-11-20 11:16:06,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 806 transitions. [2022-11-20 11:16:06,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:06,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 806 transitions. [2022-11-20 11:16:06,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 11:16:06,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:16:06,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states 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 11:16:06,483 INFO L175 Difference]: Start difference. First operand has 290 places, 445 transitions, 2234 flow. Second operand 3 states and 806 transitions. [2022-11-20 11:16:06,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 385 transitions, 1712 flow [2022-11-20 11:16:06,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 385 transitions, 1624 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:06,500 INFO L231 Difference]: Finished difference. Result has 293 places, 383 transitions, 1604 flow [2022-11-20 11:16:06,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1570, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1604, PETRI_PLACES=293, PETRI_TRANSITIONS=383} [2022-11-20 11:16:06,502 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2022-11-20 11:16:06,503 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 383 transitions, 1604 flow [2022-11-20 11:16:06,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 11:16:06,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:06,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:06,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:16:06,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 915683656, now seen corresponding path program 1 times [2022-11-20 11:16:06,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:06,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111910169] [2022-11-20 11:16:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:06,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:07,090 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 11:16:07,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:07,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111910169] [2022-11-20 11:16:07,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111910169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:07,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:07,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289388681] [2022-11-20 11:16:07,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:07,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:07,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-20 11:16:07,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 383 transitions, 1604 flow. Second operand has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states 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 11:16:07,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:07,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-20 11:16:07,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:08,765 INFO L130 PetriNetUnfolder]: 1230/4289 cut-off events. [2022-11-20 11:16:08,765 INFO L131 PetriNetUnfolder]: For 3299/3328 co-relation queries the response was YES. [2022-11-20 11:16:08,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10856 conditions, 4289 events. 1230/4289 cut-off events. For 3299/3328 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33092 event pairs, 209 based on Foata normal form. 0/4115 useless extension candidates. Maximal degree in co-relation 10767. Up to 1159 conditions per place. [2022-11-20 11:16:08,803 INFO L137 encePairwiseOnDemand]: 257/276 looper letters, 376 selfloop transitions, 124 changer transitions 4/659 dead transitions. [2022-11-20 11:16:08,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 659 transitions, 4178 flow [2022-11-20 11:16:08,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:08,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1261 transitions. [2022-11-20 11:16:08,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7614734299516909 [2022-11-20 11:16:08,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1261 transitions. [2022-11-20 11:16:08,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1261 transitions. [2022-11-20 11:16:08,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:08,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1261 transitions. [2022-11-20 11:16:08,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.16666666666666) internal successors, (1261), 6 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states 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 11:16:08,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:08,815 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:08,815 INFO L175 Difference]: Start difference. First operand has 293 places, 383 transitions, 1604 flow. Second operand 6 states and 1261 transitions. [2022-11-20 11:16:08,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 659 transitions, 4178 flow [2022-11-20 11:16:08,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 659 transitions, 4172 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:16:08,846 INFO L231 Difference]: Finished difference. Result has 301 places, 485 transitions, 2980 flow [2022-11-20 11:16:08,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2980, PETRI_PLACES=301, PETRI_TRANSITIONS=485} [2022-11-20 11:16:08,848 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 22 predicate places. [2022-11-20 11:16:08,848 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 485 transitions, 2980 flow [2022-11-20 11:16:08,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states 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 11:16:08,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:08,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:08,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:16:08,849 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1967520859, now seen corresponding path program 1 times [2022-11-20 11:16:08,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:08,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302501571] [2022-11-20 11:16:08,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:08,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:09,569 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 11:16:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:09,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302501571] [2022-11-20 11:16:09,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302501571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:09,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:09,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207347390] [2022-11-20 11:16:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:09,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:09,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 276 [2022-11-20 11:16:09,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 485 transitions, 2980 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states 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 11:16:09,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:09,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 276 [2022-11-20 11:16:09,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:11,045 INFO L130 PetriNetUnfolder]: 1281/4354 cut-off events. [2022-11-20 11:16:11,045 INFO L131 PetriNetUnfolder]: For 6062/6103 co-relation queries the response was YES. [2022-11-20 11:16:11,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12632 conditions, 4354 events. 1281/4354 cut-off events. For 6062/6103 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33324 event pairs, 469 based on Foata normal form. 0/4226 useless extension candidates. Maximal degree in co-relation 12540. Up to 2346 conditions per place. [2022-11-20 11:16:11,092 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 410 selfloop transitions, 17 changer transitions 0/584 dead transitions. [2022-11-20 11:16:11,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 584 transitions, 4424 flow [2022-11-20 11:16:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2022-11-20 11:16:11,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7028985507246377 [2022-11-20 11:16:11,096 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2022-11-20 11:16:11,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2022-11-20 11:16:11,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:11,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2022-11-20 11:16:11,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states 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 11:16:11,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:11,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:16:11,104 INFO L175 Difference]: Start difference. First operand has 301 places, 485 transitions, 2980 flow. Second operand 6 states and 1164 transitions. [2022-11-20 11:16:11,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 584 transitions, 4424 flow [2022-11-20 11:16:11,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 584 transitions, 4406 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:11,143 INFO L231 Difference]: Finished difference. Result has 305 places, 484 transitions, 2994 flow [2022-11-20 11:16:11,145 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2994, PETRI_PLACES=305, PETRI_TRANSITIONS=484} [2022-11-20 11:16:11,146 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 26 predicate places. [2022-11-20 11:16:11,146 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 484 transitions, 2994 flow [2022-11-20 11:16:11,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states 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 11:16:11,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:11,147 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:11,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:16:11,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1233179414, now seen corresponding path program 1 times [2022-11-20 11:16:11,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:11,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162859449] [2022-11-20 11:16:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:13,450 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 11:16:13,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:13,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162859449] [2022-11-20 11:16:13,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162859449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:13,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:13,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:16:13,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429751098] [2022-11-20 11:16:13,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:13,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:16:13,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:13,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:16:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:16:13,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 276 [2022-11-20 11:16:13,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 484 transitions, 2994 flow. Second operand has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states 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 11:16:13,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:13,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 276 [2022-11-20 11:16:13,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:16,864 INFO L130 PetriNetUnfolder]: 1855/5705 cut-off events. [2022-11-20 11:16:16,864 INFO L131 PetriNetUnfolder]: For 6899/6899 co-relation queries the response was YES. [2022-11-20 11:16:16,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16587 conditions, 5705 events. 1855/5705 cut-off events. For 6899/6899 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 44759 event pairs, 191 based on Foata normal form. 15/5580 useless extension candidates. Maximal degree in co-relation 16475. Up to 1996 conditions per place. [2022-11-20 11:16:16,912 INFO L137 encePairwiseOnDemand]: 244/276 looper letters, 549 selfloop transitions, 127 changer transitions 1/784 dead transitions. [2022-11-20 11:16:16,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 784 transitions, 6104 flow [2022-11-20 11:16:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 11:16:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-20 11:16:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4759 transitions. [2022-11-20 11:16:16,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537566742944317 [2022-11-20 11:16:16,924 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4759 transitions. [2022-11-20 11:16:16,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4759 transitions. [2022-11-20 11:16:16,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:16,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4759 transitions. [2022-11-20 11:16:16,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 125.23684210526316) internal successors, (4759), 38 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states 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 11:16:16,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:16:16,954 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:16:16,954 INFO L175 Difference]: Start difference. First operand has 305 places, 484 transitions, 2994 flow. Second operand 38 states and 4759 transitions. [2022-11-20 11:16:16,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 784 transitions, 6104 flow [2022-11-20 11:16:16,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 784 transitions, 6044 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:16:17,002 INFO L231 Difference]: Finished difference. Result has 352 places, 543 transitions, 3808 flow [2022-11-20 11:16:17,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2960, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=3808, PETRI_PLACES=352, PETRI_TRANSITIONS=543} [2022-11-20 11:16:17,004 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 73 predicate places. [2022-11-20 11:16:17,004 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 543 transitions, 3808 flow [2022-11-20 11:16:17,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states 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 11:16:17,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:17,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:17,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:16:17,006 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:17,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash -905724054, now seen corresponding path program 1 times [2022-11-20 11:16:17,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:17,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158389137] [2022-11-20 11:16:17,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:17,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:19,148 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 11:16:19,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:19,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158389137] [2022-11-20 11:16:19,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158389137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:19,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:19,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:16:19,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305645477] [2022-11-20 11:16:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:19,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:16:19,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:16:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:16:19,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-20 11:16:19,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 543 transitions, 3808 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:19,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:19,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-20 11:16:19,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:23,318 INFO L130 PetriNetUnfolder]: 2214/6839 cut-off events. [2022-11-20 11:16:23,319 INFO L131 PetriNetUnfolder]: For 12908/12916 co-relation queries the response was YES. [2022-11-20 11:16:23,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22096 conditions, 6839 events. 2214/6839 cut-off events. For 12908/12916 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 56745 event pairs, 354 based on Foata normal form. 18/6702 useless extension candidates. Maximal degree in co-relation 21962. Up to 1702 conditions per place. [2022-11-20 11:16:23,382 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 710 selfloop transitions, 158 changer transitions 3/982 dead transitions. [2022-11-20 11:16:23,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 982 transitions, 8620 flow [2022-11-20 11:16:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:16:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 11:16:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3991 transitions. [2022-11-20 11:16:23,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4820048309178744 [2022-11-20 11:16:23,390 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3991 transitions. [2022-11-20 11:16:23,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3991 transitions. [2022-11-20 11:16:23,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:23,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3991 transitions. [2022-11-20 11:16:23,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 133.03333333333333) internal successors, (3991), 30 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states 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 11:16:23,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states 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 11:16:23,413 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 276.0) internal successors, (8556), 31 states have internal predecessors, (8556), 0 states have call successors, (0), 0 states 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 11:16:23,413 INFO L175 Difference]: Start difference. First operand has 352 places, 543 transitions, 3808 flow. Second operand 30 states and 3991 transitions. [2022-11-20 11:16:23,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 982 transitions, 8620 flow [2022-11-20 11:16:23,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 982 transitions, 8485 flow, removed 53 selfloop flow, removed 11 redundant places. [2022-11-20 11:16:23,516 INFO L231 Difference]: Finished difference. Result has 380 places, 633 transitions, 5281 flow [2022-11-20 11:16:23,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=3726, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=5281, PETRI_PLACES=380, PETRI_TRANSITIONS=633} [2022-11-20 11:16:23,517 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 101 predicate places. [2022-11-20 11:16:23,518 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 633 transitions, 5281 flow [2022-11-20 11:16:23,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:23,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:23,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:23,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:16:23,519 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:23,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2083265774, now seen corresponding path program 2 times [2022-11-20 11:16:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:23,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545923509] [2022-11-20 11:16:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:25,521 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 11:16:25,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:25,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545923509] [2022-11-20 11:16:25,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545923509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:25,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:25,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:16:25,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367091499] [2022-11-20 11:16:25,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:25,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:16:25,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:25,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:16:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:16:25,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:16:25,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 633 transitions, 5281 flow. Second operand has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states 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 11:16:25,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:25,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:16:25,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:30,551 INFO L130 PetriNetUnfolder]: 2335/7104 cut-off events. [2022-11-20 11:16:30,551 INFO L131 PetriNetUnfolder]: For 17644/17654 co-relation queries the response was YES. [2022-11-20 11:16:30,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24670 conditions, 7104 events. 2335/7104 cut-off events. For 17644/17654 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 58675 event pairs, 211 based on Foata normal form. 25/6977 useless extension candidates. Maximal degree in co-relation 24523. Up to 1290 conditions per place. [2022-11-20 11:16:30,632 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 686 selfloop transitions, 202 changer transitions 4/1001 dead transitions. [2022-11-20 11:16:30,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1001 transitions, 9440 flow [2022-11-20 11:16:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 11:16:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-20 11:16:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4897 transitions. [2022-11-20 11:16:30,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4669145690312738 [2022-11-20 11:16:30,643 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4897 transitions. [2022-11-20 11:16:30,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4897 transitions. [2022-11-20 11:16:30,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:30,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4897 transitions. [2022-11-20 11:16:30,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.8684210526316) internal successors, (4897), 38 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states 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 11:16:30,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:16:30,674 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:16:30,674 INFO L175 Difference]: Start difference. First operand has 380 places, 633 transitions, 5281 flow. Second operand 38 states and 4897 transitions. [2022-11-20 11:16:30,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1001 transitions, 9440 flow [2022-11-20 11:16:30,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1001 transitions, 9368 flow, removed 17 selfloop flow, removed 11 redundant places. [2022-11-20 11:16:30,847 INFO L231 Difference]: Finished difference. Result has 419 places, 696 transitions, 6464 flow [2022-11-20 11:16:30,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=5233, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=6464, PETRI_PLACES=419, PETRI_TRANSITIONS=696} [2022-11-20 11:16:30,849 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 140 predicate places. [2022-11-20 11:16:30,849 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 696 transitions, 6464 flow [2022-11-20 11:16:30,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.23809523809524) internal successors, (2567), 21 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states 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 11:16:30,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:30,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:30,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:16:30,851 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1788509596, now seen corresponding path program 3 times [2022-11-20 11:16:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:30,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596936675] [2022-11-20 11:16:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:30,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:33,108 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 11:16:33,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:33,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596936675] [2022-11-20 11:16:33,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596936675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:33,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:33,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:16:33,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300127856] [2022-11-20 11:16:33,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:33,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:16:33,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:33,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:16:33,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:16:33,113 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:16:33,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 696 transitions, 6464 flow. Second operand has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states 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 11:16:33,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:33,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:16:33,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:39,337 INFO L130 PetriNetUnfolder]: 2817/8469 cut-off events. [2022-11-20 11:16:39,338 INFO L131 PetriNetUnfolder]: For 28047/28059 co-relation queries the response was YES. [2022-11-20 11:16:39,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32007 conditions, 8469 events. 2817/8469 cut-off events. For 28047/28059 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 73336 event pairs, 297 based on Foata normal form. 27/8334 useless extension candidates. Maximal degree in co-relation 31844. Up to 1418 conditions per place. [2022-11-20 11:16:39,411 INFO L137 encePairwiseOnDemand]: 239/276 looper letters, 860 selfloop transitions, 243 changer transitions 4/1216 dead transitions. [2022-11-20 11:16:39,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1216 transitions, 12603 flow [2022-11-20 11:16:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-20 11:16:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-20 11:16:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4865 transitions. [2022-11-20 11:16:39,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4764003133568351 [2022-11-20 11:16:39,421 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4865 transitions. [2022-11-20 11:16:39,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4865 transitions. [2022-11-20 11:16:39,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:39,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4865 transitions. [2022-11-20 11:16:39,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 131.48648648648648) internal successors, (4865), 37 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states 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 11:16:39,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states 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 11:16:39,449 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 276.0) internal successors, (10488), 38 states have internal predecessors, (10488), 0 states have call successors, (0), 0 states 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 11:16:39,449 INFO L175 Difference]: Start difference. First operand has 419 places, 696 transitions, 6464 flow. Second operand 37 states and 4865 transitions. [2022-11-20 11:16:39,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1216 transitions, 12603 flow [2022-11-20 11:16:39,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1216 transitions, 12368 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-20 11:16:39,727 INFO L231 Difference]: Finished difference. Result has 443 places, 785 transitions, 8437 flow [2022-11-20 11:16:39,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=6294, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8437, PETRI_PLACES=443, PETRI_TRANSITIONS=785} [2022-11-20 11:16:39,729 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 164 predicate places. [2022-11-20 11:16:39,730 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 785 transitions, 8437 flow [2022-11-20 11:16:39,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.0) internal successors, (2684), 22 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states 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 11:16:39,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:39,731 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:39,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:16:39,732 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1259388884, now seen corresponding path program 4 times [2022-11-20 11:16:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:39,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106439339] [2022-11-20 11:16:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:41,708 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 11:16:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:41,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106439339] [2022-11-20 11:16:41,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106439339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:41,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:16:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791101325] [2022-11-20 11:16:41,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:16:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:16:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:16:41,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-20 11:16:41,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 785 transitions, 8437 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:41,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:41,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-20 11:16:41,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:47,582 INFO L130 PetriNetUnfolder]: 3299/9913 cut-off events. [2022-11-20 11:16:47,582 INFO L131 PetriNetUnfolder]: For 43269/43283 co-relation queries the response was YES. [2022-11-20 11:16:47,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39787 conditions, 9913 events. 3299/9913 cut-off events. For 43269/43283 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 89065 event pairs, 428 based on Foata normal form. 29/9759 useless extension candidates. Maximal degree in co-relation 39611. Up to 1838 conditions per place. [2022-11-20 11:16:48,034 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 888 selfloop transitions, 283 changer transitions 3/1285 dead transitions. [2022-11-20 11:16:48,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1285 transitions, 15233 flow [2022-11-20 11:16:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:16:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:16:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4504 transitions. [2022-11-20 11:16:48,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4799658994032396 [2022-11-20 11:16:48,048 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4504 transitions. [2022-11-20 11:16:48,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4504 transitions. [2022-11-20 11:16:48,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:48,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4504 transitions. [2022-11-20 11:16:48,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 132.47058823529412) internal successors, (4504), 34 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states 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 11:16:48,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states 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 11:16:48,078 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 276.0) internal successors, (9660), 35 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states 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 11:16:48,078 INFO L175 Difference]: Start difference. First operand has 443 places, 785 transitions, 8437 flow. Second operand 34 states and 4504 transitions. [2022-11-20 11:16:48,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1285 transitions, 15233 flow [2022-11-20 11:16:48,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1285 transitions, 15136 flow, removed 19 selfloop flow, removed 16 redundant places. [2022-11-20 11:16:48,514 INFO L231 Difference]: Finished difference. Result has 473 places, 884 transitions, 11108 flow [2022-11-20 11:16:48,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=8362, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=11108, PETRI_PLACES=473, PETRI_TRANSITIONS=884} [2022-11-20 11:16:48,515 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 194 predicate places. [2022-11-20 11:16:48,515 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 884 transitions, 11108 flow [2022-11-20 11:16:48,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:48,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:48,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:48,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:16:48,516 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash -543172394, now seen corresponding path program 5 times [2022-11-20 11:16:48,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:48,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979712391] [2022-11-20 11:16:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:48,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:50,751 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 11:16:50,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:50,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979712391] [2022-11-20 11:16:50,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979712391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:50,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:50,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:16:50,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9644308] [2022-11-20 11:16:50,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:50,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:16:50,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:50,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:16:50,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:16:50,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-20 11:16:50,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 884 transitions, 11108 flow. Second operand has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:50,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:50,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-20 11:16:50,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:57,843 INFO L130 PetriNetUnfolder]: 3728/11201 cut-off events. [2022-11-20 11:16:57,843 INFO L131 PetriNetUnfolder]: For 63519/63535 co-relation queries the response was YES. [2022-11-20 11:16:57,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47621 conditions, 11201 events. 3728/11201 cut-off events. For 63519/63535 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 104089 event pairs, 471 based on Foata normal form. 31/11036 useless extension candidates. Maximal degree in co-relation 47428. Up to 2268 conditions per place. [2022-11-20 11:16:58,032 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 900 selfloop transitions, 335 changer transitions 3/1349 dead transitions. [2022-11-20 11:16:58,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1349 transitions, 17814 flow [2022-11-20 11:16:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 11:16:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-20 11:16:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 4376 transitions. [2022-11-20 11:16:58,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48045674132630656 [2022-11-20 11:16:58,042 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 4376 transitions. [2022-11-20 11:16:58,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 4376 transitions. [2022-11-20 11:16:58,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:58,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 4376 transitions. [2022-11-20 11:16:58,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 132.6060606060606) internal successors, (4376), 33 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states 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 11:16:58,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states 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 11:16:58,069 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 276.0) internal successors, (9384), 34 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states 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 11:16:58,069 INFO L175 Difference]: Start difference. First operand has 473 places, 884 transitions, 11108 flow. Second operand 33 states and 4376 transitions. [2022-11-20 11:16:58,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1349 transitions, 17814 flow [2022-11-20 11:16:58,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1349 transitions, 17660 flow, removed 55 selfloop flow, removed 14 redundant places. [2022-11-20 11:16:58,837 INFO L231 Difference]: Finished difference. Result has 502 places, 960 transitions, 13801 flow [2022-11-20 11:16:58,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=10962, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=13801, PETRI_PLACES=502, PETRI_TRANSITIONS=960} [2022-11-20 11:16:58,838 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-20 11:16:58,838 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 960 transitions, 13801 flow [2022-11-20 11:16:58,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.45) internal successors, (2469), 20 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states 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 11:16:58,839 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:58,839 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:58,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:16:58,839 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:16:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash -934467488, now seen corresponding path program 1 times [2022-11-20 11:16:58,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621749957] [2022-11-20 11:16:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:58,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:59,489 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 11:16:59,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:59,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621749957] [2022-11-20 11:16:59,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621749957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:59,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:59,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:59,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838604269] [2022-11-20 11:16:59,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:59,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:59,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:59,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:59,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 276 [2022-11-20 11:16:59,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 960 transitions, 13801 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states 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 11:16:59,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:59,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 276 [2022-11-20 11:16:59,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:04,319 INFO L130 PetriNetUnfolder]: 3032/10024 cut-off events. [2022-11-20 11:17:04,319 INFO L131 PetriNetUnfolder]: For 71594/71945 co-relation queries the response was YES. [2022-11-20 11:17:04,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44077 conditions, 10024 events. 3032/10024 cut-off events. For 71594/71945 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 95100 event pairs, 1031 based on Foata normal form. 126/9994 useless extension candidates. Maximal degree in co-relation 43889. Up to 5812 conditions per place. [2022-11-20 11:17:04,493 INFO L137 encePairwiseOnDemand]: 253/276 looper letters, 627 selfloop transitions, 97 changer transitions 106/1094 dead transitions. [2022-11-20 11:17:04,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1094 transitions, 16629 flow [2022-11-20 11:17:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:17:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:17:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1171 transitions. [2022-11-20 11:17:04,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7071256038647343 [2022-11-20 11:17:04,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1171 transitions. [2022-11-20 11:17:04,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1171 transitions. [2022-11-20 11:17:04,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:04,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1171 transitions. [2022-11-20 11:17:04,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states 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 11:17:04,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:17:04,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:17:04,503 INFO L175 Difference]: Start difference. First operand has 502 places, 960 transitions, 13801 flow. Second operand 6 states and 1171 transitions. [2022-11-20 11:17:04,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1094 transitions, 16629 flow [2022-11-20 11:17:05,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1094 transitions, 16488 flow, removed 45 selfloop flow, removed 15 redundant places. [2022-11-20 11:17:05,258 INFO L231 Difference]: Finished difference. Result has 497 places, 955 transitions, 13349 flow [2022-11-20 11:17:05,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13660, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13349, PETRI_PLACES=497, PETRI_TRANSITIONS=955} [2022-11-20 11:17:05,259 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 218 predicate places. [2022-11-20 11:17:05,260 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 955 transitions, 13349 flow [2022-11-20 11:17:05,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states 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 11:17:05,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:05,260 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:05,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:17:05,261 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash 428030399, now seen corresponding path program 1 times [2022-11-20 11:17:05,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68874023] [2022-11-20 11:17:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:05,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:06,994 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 11:17:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:06,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68874023] [2022-11-20 11:17:06,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68874023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:06,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:06,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:17:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968486013] [2022-11-20 11:17:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:06,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:17:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:17:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:17:06,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:17:07,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 955 transitions, 13349 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:07,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:07,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:17:07,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:14,879 INFO L130 PetriNetUnfolder]: 3688/10885 cut-off events. [2022-11-20 11:17:14,879 INFO L131 PetriNetUnfolder]: For 83350/83355 co-relation queries the response was YES. [2022-11-20 11:17:15,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51176 conditions, 10885 events. 3688/10885 cut-off events. For 83350/83355 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 98705 event pairs, 469 based on Foata normal form. 10/10797 useless extension candidates. Maximal degree in co-relation 50970. Up to 1999 conditions per place. [2022-11-20 11:17:15,084 INFO L137 encePairwiseOnDemand]: 243/276 looper letters, 874 selfloop transitions, 272 changer transitions 31/1286 dead transitions. [2022-11-20 11:17:15,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1286 transitions, 18372 flow [2022-11-20 11:17:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 11:17:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-20 11:17:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 4879 transitions. [2022-11-20 11:17:15,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46519832189168575 [2022-11-20 11:17:15,091 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 4879 transitions. [2022-11-20 11:17:15,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 4879 transitions. [2022-11-20 11:17:15,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:15,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 4879 transitions. [2022-11-20 11:17:15,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 128.39473684210526) internal successors, (4879), 38 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states 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 11:17:15,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:17:15,114 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 276.0) internal successors, (10764), 39 states have internal predecessors, (10764), 0 states have call successors, (0), 0 states 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 11:17:15,114 INFO L175 Difference]: Start difference. First operand has 497 places, 955 transitions, 13349 flow. Second operand 38 states and 4879 transitions. [2022-11-20 11:17:15,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1286 transitions, 18372 flow [2022-11-20 11:17:15,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1286 transitions, 17844 flow, removed 196 selfloop flow, removed 11 redundant places. [2022-11-20 11:17:15,874 INFO L231 Difference]: Finished difference. Result has 502 places, 965 transitions, 13874 flow [2022-11-20 11:17:15,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12975, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=13874, PETRI_PLACES=502, PETRI_TRANSITIONS=965} [2022-11-20 11:17:15,876 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-20 11:17:15,876 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 965 transitions, 13874 flow [2022-11-20 11:17:15,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:15,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:15,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:15,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:17:15,877 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1549432587, now seen corresponding path program 2 times [2022-11-20 11:17:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:15,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819212726] [2022-11-20 11:17:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:15,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:17,893 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 11:17:17,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:17,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819212726] [2022-11-20 11:17:17,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819212726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:17,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:17,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:17:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866627992] [2022-11-20 11:17:17,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:17,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:17:17,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:17:17,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:17:17,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 276 [2022-11-20 11:17:17,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 965 transitions, 13874 flow. Second operand has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 11:17:17,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:17,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 276 [2022-11-20 11:17:17,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:24,744 INFO L130 PetriNetUnfolder]: 3669/10783 cut-off events. [2022-11-20 11:17:24,744 INFO L131 PetriNetUnfolder]: For 91825/91830 co-relation queries the response was YES. [2022-11-20 11:17:24,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52251 conditions, 10783 events. 3669/10783 cut-off events. For 91825/91830 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 97363 event pairs, 548 based on Foata normal form. 10/10689 useless extension candidates. Maximal degree in co-relation 52045. Up to 2171 conditions per place. [2022-11-20 11:17:25,094 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 919 selfloop transitions, 267 changer transitions 29/1326 dead transitions. [2022-11-20 11:17:25,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1326 transitions, 19415 flow [2022-11-20 11:17:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 11:17:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-20 11:17:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4084 transitions. [2022-11-20 11:17:25,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47732585320243104 [2022-11-20 11:17:25,102 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4084 transitions. [2022-11-20 11:17:25,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4084 transitions. [2022-11-20 11:17:25,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:25,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4084 transitions. [2022-11-20 11:17:25,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 131.74193548387098) internal successors, (4084), 31 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states 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 11:17:25,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states 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 11:17:25,124 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 276.0) internal successors, (8832), 32 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states 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 11:17:25,124 INFO L175 Difference]: Start difference. First operand has 502 places, 965 transitions, 13874 flow. Second operand 31 states and 4084 transitions. [2022-11-20 11:17:25,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1326 transitions, 19415 flow [2022-11-20 11:17:25,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1326 transitions, 18883 flow, removed 16 selfloop flow, removed 33 redundant places. [2022-11-20 11:17:25,811 INFO L231 Difference]: Finished difference. Result has 502 places, 974 transitions, 14447 flow [2022-11-20 11:17:25,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=13378, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14447, PETRI_PLACES=502, PETRI_TRANSITIONS=974} [2022-11-20 11:17:25,813 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 223 predicate places. [2022-11-20 11:17:25,813 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 974 transitions, 14447 flow [2022-11-20 11:17:25,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 123.7) internal successors, (2474), 20 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 11:17:25,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:25,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:25,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:17:25,815 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:25,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1611330081, now seen corresponding path program 3 times [2022-11-20 11:17:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:25,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417311302] [2022-11-20 11:17:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:27,638 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 11:17:27,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:27,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417311302] [2022-11-20 11:17:27,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417311302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:27,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:27,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:17:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492141358] [2022-11-20 11:17:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:27,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:17:27,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:27,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:17:27,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:17:27,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:17:27,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 974 transitions, 14447 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:27,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:27,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:17:27,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:35,064 INFO L130 PetriNetUnfolder]: 3731/10996 cut-off events. [2022-11-20 11:17:35,064 INFO L131 PetriNetUnfolder]: For 101719/101724 co-relation queries the response was YES. [2022-11-20 11:17:35,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53592 conditions, 10996 events. 3731/10996 cut-off events. For 101719/101724 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 99867 event pairs, 474 based on Foata normal form. 10/10907 useless extension candidates. Maximal degree in co-relation 53381. Up to 1999 conditions per place. [2022-11-20 11:17:35,259 INFO L137 encePairwiseOnDemand]: 242/276 looper letters, 883 selfloop transitions, 283 changer transitions 31/1306 dead transitions. [2022-11-20 11:17:35,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 1306 transitions, 19487 flow [2022-11-20 11:17:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 11:17:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-20 11:17:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4638 transitions. [2022-11-20 11:17:35,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4667874396135266 [2022-11-20 11:17:35,266 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4638 transitions. [2022-11-20 11:17:35,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4638 transitions. [2022-11-20 11:17:35,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:35,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4638 transitions. [2022-11-20 11:17:35,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 128.83333333333334) internal successors, (4638), 36 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states 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 11:17:35,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states 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 11:17:35,288 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 276.0) internal successors, (10212), 37 states have internal predecessors, (10212), 0 states have call successors, (0), 0 states 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 11:17:35,288 INFO L175 Difference]: Start difference. First operand has 502 places, 974 transitions, 14447 flow. Second operand 36 states and 4638 transitions. [2022-11-20 11:17:35,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 1306 transitions, 19487 flow [2022-11-20 11:17:36,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1306 transitions, 19050 flow, removed 15 selfloop flow, removed 27 redundant places. [2022-11-20 11:17:36,274 INFO L231 Difference]: Finished difference. Result has 514 places, 986 transitions, 15038 flow [2022-11-20 11:17:36,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14022, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=15038, PETRI_PLACES=514, PETRI_TRANSITIONS=986} [2022-11-20 11:17:36,276 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 235 predicate places. [2022-11-20 11:17:36,276 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 986 transitions, 15038 flow [2022-11-20 11:17:36,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:36,276 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:36,276 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:36,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:17:36,277 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:36,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2072578291, now seen corresponding path program 4 times [2022-11-20 11:17:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:36,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164515573] [2022-11-20 11:17:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:36,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:38,258 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 11:17:38,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:38,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164515573] [2022-11-20 11:17:38,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164515573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:38,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:38,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:17:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796387913] [2022-11-20 11:17:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:38,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:17:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:38,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:17:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:17:38,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:17:38,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 986 transitions, 15038 flow. Second operand has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:38,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:38,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:17:38,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:46,500 INFO L130 PetriNetUnfolder]: 3753/10947 cut-off events. [2022-11-20 11:17:46,500 INFO L131 PetriNetUnfolder]: For 111127/111132 co-relation queries the response was YES. [2022-11-20 11:17:46,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55071 conditions, 10947 events. 3753/10947 cut-off events. For 111127/111132 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 98947 event pairs, 488 based on Foata normal form. 10/10850 useless extension candidates. Maximal degree in co-relation 54856. Up to 1909 conditions per place. [2022-11-20 11:17:46,908 INFO L137 encePairwiseOnDemand]: 238/276 looper letters, 1008 selfloop transitions, 313 changer transitions 31/1461 dead transitions. [2022-11-20 11:17:46,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1461 transitions, 21634 flow [2022-11-20 11:17:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 11:17:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-20 11:17:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5082 transitions. [2022-11-20 11:17:46,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4721293199554069 [2022-11-20 11:17:46,915 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 5082 transitions. [2022-11-20 11:17:46,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 5082 transitions. [2022-11-20 11:17:46,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:46,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 5082 transitions. [2022-11-20 11:17:46,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 130.30769230769232) internal successors, (5082), 39 states have internal predecessors, (5082), 0 states have call successors, (0), 0 states 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 11:17:46,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states 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 11:17:46,936 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 276.0) internal successors, (11040), 40 states have internal predecessors, (11040), 0 states have call successors, (0), 0 states 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 11:17:46,937 INFO L175 Difference]: Start difference. First operand has 514 places, 986 transitions, 15038 flow. Second operand 39 states and 5082 transitions. [2022-11-20 11:17:46,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1461 transitions, 21634 flow [2022-11-20 11:17:47,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1461 transitions, 21104 flow, removed 38 selfloop flow, removed 29 redundant places. [2022-11-20 11:17:47,805 INFO L231 Difference]: Finished difference. Result has 527 places, 1016 transitions, 15979 flow [2022-11-20 11:17:47,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=14571, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=986, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=15979, PETRI_PLACES=527, PETRI_TRANSITIONS=1016} [2022-11-20 11:17:47,807 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 248 predicate places. [2022-11-20 11:17:47,807 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1016 transitions, 15979 flow [2022-11-20 11:17:47,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 122.22727272727273) internal successors, (2689), 22 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 11:17:47,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:47,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:47,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:17:47,808 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:47,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:47,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1298348175, now seen corresponding path program 5 times [2022-11-20 11:17:47,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:47,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880340986] [2022-11-20 11:17:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:47,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:49,633 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 11:17:49,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:17:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880340986] [2022-11-20 11:17:49,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880340986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:49,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:17:49,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:17:49,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748528149] [2022-11-20 11:17:49,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:49,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:17:49,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:17:49,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:17:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:17:49,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 276 [2022-11-20 11:17:49,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1016 transitions, 15979 flow. Second operand has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states 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 11:17:49,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:17:49,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 276 [2022-11-20 11:17:49,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:17:58,610 INFO L130 PetriNetUnfolder]: 3758/11024 cut-off events. [2022-11-20 11:17:58,611 INFO L131 PetriNetUnfolder]: For 115765/115770 co-relation queries the response was YES. [2022-11-20 11:17:58,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55692 conditions, 11024 events. 3758/11024 cut-off events. For 115765/115770 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 100470 event pairs, 357 based on Foata normal form. 10/10960 useless extension candidates. Maximal degree in co-relation 55472. Up to 2064 conditions per place. [2022-11-20 11:17:58,795 INFO L137 encePairwiseOnDemand]: 241/276 looper letters, 883 selfloop transitions, 375 changer transitions 37/1404 dead transitions. [2022-11-20 11:17:58,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 1404 transitions, 21407 flow [2022-11-20 11:17:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-20 11:17:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-20 11:17:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5552 transitions. [2022-11-20 11:17:58,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4678126053252444 [2022-11-20 11:17:58,804 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5552 transitions. [2022-11-20 11:17:58,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5552 transitions. [2022-11-20 11:17:58,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:17:58,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5552 transitions. [2022-11-20 11:17:58,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 129.11627906976744) internal successors, (5552), 43 states have internal predecessors, (5552), 0 states have call successors, (0), 0 states 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 11:17:58,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states 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 11:17:58,828 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 276.0) internal successors, (12144), 44 states have internal predecessors, (12144), 0 states have call successors, (0), 0 states 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 11:17:58,828 INFO L175 Difference]: Start difference. First operand has 527 places, 1016 transitions, 15979 flow. Second operand 43 states and 5552 transitions. [2022-11-20 11:17:58,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 1404 transitions, 21407 flow [2022-11-20 11:17:59,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1404 transitions, 21007 flow, removed 49 selfloop flow, removed 29 redundant places. [2022-11-20 11:17:59,862 INFO L231 Difference]: Finished difference. Result has 549 places, 1052 transitions, 17167 flow [2022-11-20 11:17:59,863 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=15598, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=17167, PETRI_PLACES=549, PETRI_TRANSITIONS=1052} [2022-11-20 11:17:59,864 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 270 predicate places. [2022-11-20 11:17:59,864 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 1052 transitions, 17167 flow [2022-11-20 11:17:59,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 122.47619047619048) internal successors, (2572), 21 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states 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 11:17:59,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:17:59,865 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:17:59,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:17:59,866 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:17:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1072110005, now seen corresponding path program 1 times [2022-11-20 11:17:59,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:17:59,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561624442] [2022-11-20 11:17:59,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:59,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:17:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:04,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:04,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561624442] [2022-11-20 11:18:04,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561624442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:04,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 11:18:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478399699] [2022-11-20 11:18:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:04,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:18:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:18:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:18:04,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-20 11:18:04,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1052 transitions, 17167 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 11:18:04,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:04,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-20 11:18:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:14,467 INFO L130 PetriNetUnfolder]: 4127/12315 cut-off events. [2022-11-20 11:18:14,467 INFO L131 PetriNetUnfolder]: For 139006/139011 co-relation queries the response was YES. [2022-11-20 11:18:14,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62545 conditions, 12315 events. 4127/12315 cut-off events. For 139006/139011 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 114095 event pairs, 849 based on Foata normal form. 17/12239 useless extension candidates. Maximal degree in co-relation 62319. Up to 2094 conditions per place. [2022-11-20 11:18:14,685 INFO L137 encePairwiseOnDemand]: 246/276 looper letters, 1201 selfloop transitions, 212 changer transitions 134/1655 dead transitions. [2022-11-20 11:18:14,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1655 transitions, 27044 flow [2022-11-20 11:18:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-20 11:18:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-20 11:18:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 6823 transitions. [2022-11-20 11:18:14,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45779656468062263 [2022-11-20 11:18:14,692 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 6823 transitions. [2022-11-20 11:18:14,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 6823 transitions. [2022-11-20 11:18:14,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:14,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 6823 transitions. [2022-11-20 11:18:14,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 126.35185185185185) internal successors, (6823), 54 states have internal predecessors, (6823), 0 states have call successors, (0), 0 states 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 11:18:14,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states 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 11:18:14,724 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 276.0) internal successors, (15180), 55 states have internal predecessors, (15180), 0 states have call successors, (0), 0 states 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 11:18:14,724 INFO L175 Difference]: Start difference. First operand has 549 places, 1052 transitions, 17167 flow. Second operand 54 states and 6823 transitions. [2022-11-20 11:18:14,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1655 transitions, 27044 flow [2022-11-20 11:18:15,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1655 transitions, 26202 flow, removed 173 selfloop flow, removed 39 redundant places. [2022-11-20 11:18:15,831 INFO L231 Difference]: Finished difference. Result has 575 places, 1105 transitions, 17514 flow [2022-11-20 11:18:15,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=16562, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=17514, PETRI_PLACES=575, PETRI_TRANSITIONS=1105} [2022-11-20 11:18:15,833 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 296 predicate places. [2022-11-20 11:18:15,833 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 1105 transitions, 17514 flow [2022-11-20 11:18:15,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 11:18:15,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:15,834 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:15,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:18:15,835 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:18:15,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:15,835 INFO L85 PathProgramCache]: Analyzing trace with hash -11881588, now seen corresponding path program 1 times [2022-11-20 11:18:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:15,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284641974] [2022-11-20 11:18:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:15,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:18,414 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 11:18:18,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:18,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284641974] [2022-11-20 11:18:18,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284641974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:18,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:18,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 11:18:18,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019053134] [2022-11-20 11:18:18,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:18,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:18:18,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:18:18,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:18:18,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 276 [2022-11-20 11:18:18,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 1105 transitions, 17514 flow. Second operand has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states 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 11:18:18,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:18,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 276 [2022-11-20 11:18:18,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:18:29,221 INFO L130 PetriNetUnfolder]: 4214/12209 cut-off events. [2022-11-20 11:18:29,221 INFO L131 PetriNetUnfolder]: For 132935/132942 co-relation queries the response was YES. [2022-11-20 11:18:29,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62377 conditions, 12209 events. 4214/12209 cut-off events. For 132935/132942 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 111358 event pairs, 903 based on Foata normal form. 23/12121 useless extension candidates. Maximal degree in co-relation 62149. Up to 2215 conditions per place. [2022-11-20 11:18:29,477 INFO L137 encePairwiseOnDemand]: 236/276 looper letters, 1038 selfloop transitions, 257 changer transitions 79/1480 dead transitions. [2022-11-20 11:18:29,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1480 transitions, 24715 flow [2022-11-20 11:18:29,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 11:18:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-20 11:18:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5152 transitions. [2022-11-20 11:18:29,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45528455284552843 [2022-11-20 11:18:29,484 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5152 transitions. [2022-11-20 11:18:29,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5152 transitions. [2022-11-20 11:18:29,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:18:29,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5152 transitions. [2022-11-20 11:18:29,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 125.65853658536585) internal successors, (5152), 41 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states 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 11:18:29,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 11:18:29,509 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 276.0) internal successors, (11592), 42 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states 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 11:18:29,509 INFO L175 Difference]: Start difference. First operand has 575 places, 1105 transitions, 17514 flow. Second operand 41 states and 5152 transitions. [2022-11-20 11:18:29,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1480 transitions, 24715 flow [2022-11-20 11:18:30,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 1480 transitions, 24488 flow, removed 21 selfloop flow, removed 20 redundant places. [2022-11-20 11:18:30,556 INFO L231 Difference]: Finished difference. Result has 598 places, 1127 transitions, 18429 flow [2022-11-20 11:18:30,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=17332, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=18429, PETRI_PLACES=598, PETRI_TRANSITIONS=1127} [2022-11-20 11:18:30,557 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 319 predicate places. [2022-11-20 11:18:30,558 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 1127 transitions, 18429 flow [2022-11-20 11:18:30,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 119.04347826086956) internal successors, (2738), 23 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states 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 11:18:30,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:18:30,559 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:30,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:18:30,559 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-20 11:18:30,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2142203519, now seen corresponding path program 2 times [2022-11-20 11:18:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:30,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814634431] [2022-11-20 11:18:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:32,750 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 11:18:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:32,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814634431] [2022-11-20 11:18:32,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814634431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:32,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:32,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 11:18:32,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140823502] [2022-11-20 11:18:32,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:32,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:18:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:18:32,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:18:32,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 276 [2022-11-20 11:18:32,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1127 transitions, 18429 flow. Second operand has 23 states, 23 states have (on average 121.0) internal successors, (2783), 23 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states 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 11:18:32,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:18:32,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 276 [2022-11-20 11:18:32,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand