./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro --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 4c1c24b29e2a448aa58292c6eb9ff7da7a6479c4a0ee37fcfe55a998096eea30 --- 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-8393723 [2022-11-18 18:49:45,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:49:45,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:49:45,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:49:45,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:49:45,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:49:45,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:49:45,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:49:45,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:49:45,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:49:45,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:49:45,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:49:45,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:49:46,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:49:46,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:49:46,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:49:46,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:49:46,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:49:46,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:49:46,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:49:46,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:49:46,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:49:46,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:49:46,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:49:46,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:49:46,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:49:46,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:49:46,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:49:46,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:49:46,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:49:46,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:49:46,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:49:46,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:49:46,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:49:46,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:49:46,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:49:46,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:49:46,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:49:46,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:49:46,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:49:46,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:49:46,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:49:46,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:49:46,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:49:46,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:49:46,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:49:46,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:49:46,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:49:46,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:49:46,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:49:46,118 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:49:46,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:49:46,122 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:49:46,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:49:46,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:49:46,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:49:46,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:49:46,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:49:46,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:49:46,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:49:46,123 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:49:46,123 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:49:46,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:49:46,124 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:49:46,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:49:46,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:49:46,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:49:46,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:49:46,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:46,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:49:46,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:49:46,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:49:46,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:49:46,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:49:46,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:49:46,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:49:46,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:49:46,129 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_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c1c24b29e2a448aa58292c6eb9ff7da7a6479c4a0ee37fcfe55a998096eea30 [2022-11-18 18:49:46,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:49:46,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:49:46,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:49:46,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:49:46,489 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:49:46,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2022-11-18 18:49:46,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/data/b654593dc/dd416ed086a848629b113e93023733fd/FLAG28a7bb0ee [2022-11-18 18:49:47,030 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:49:47,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c [2022-11-18 18:49:47,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/data/b654593dc/dd416ed086a848629b113e93023733fd/FLAG28a7bb0ee [2022-11-18 18:49:47,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/data/b654593dc/dd416ed086a848629b113e93023733fd [2022-11-18 18:49:47,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:49:47,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:49:47,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:47,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:49:47,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:49:47,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcc9b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47, skipping insertion in model container [2022-11-18 18:49:47,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:49:47,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:49:47,731 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-11-18 18:49:47,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:47,752 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:49:47,812 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/sv-benchmarks/c/weaver/bench-exp3x3-opt.wvr.c[2826,2839] [2022-11-18 18:49:47,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:49:47,828 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:49:47,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47 WrapperNode [2022-11-18 18:49:47,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:49:47,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:47,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:49:47,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:49:47,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,876 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 271 [2022-11-18 18:49:47,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:49:47,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:49:47,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:49:47,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:49:47,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:49:47,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:49:47,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:49:47,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:49:47,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (1/1) ... [2022-11-18 18:49:47,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:49:47,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:49:47,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:49:47,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8542fc17-ba62-4bb4-af9a-228df9bfccdb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:49:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:49:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:49:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:49:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:49:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:49:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:49:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:49:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:49:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:49:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:49:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 18:49:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 18:49:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:49:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 18:49:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 18:49:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 18:49:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 18:49:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:49:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:49:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:49:48,010 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:49:48,129 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:49:48,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:49:48,901 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:49:48,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:49:48,923 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 18:49:48,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:48 BoogieIcfgContainer [2022-11-18 18:49:48,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:49:48,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:49:48,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:49:48,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:49:48,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:49:47" (1/3) ... [2022-11-18 18:49:48,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15022f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:48, skipping insertion in model container [2022-11-18 18:49:48,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:49:47" (2/3) ... [2022-11-18 18:49:48,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15022f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:48, skipping insertion in model container [2022-11-18 18:49:48,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:48" (3/3) ... [2022-11-18 18:49:48,936 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2022-11-18 18:49:48,952 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:49:48,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:49:48,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations. [2022-11-18 18:49:48,963 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:49:49,163 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-18 18:49:49,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 463 transitions, 974 flow [2022-11-18 18:49:49,484 INFO L130 PetriNetUnfolder]: 24/457 cut-off events. [2022-11-18 18:49:49,485 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 18:49:49,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 457 events. 24/457 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 806 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 285. Up to 2 conditions per place. [2022-11-18 18:49:49,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 463 transitions, 974 flow [2022-11-18 18:49:49,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 418 places, 421 transitions, 878 flow [2022-11-18 18:49:49,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:49,543 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;@2d58fca9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:49,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2022-11-18 18:49:49,554 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 18:49:49,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:49:49,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:49,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:49,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:49,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:49,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1336015694, now seen corresponding path program 1 times [2022-11-18 18:49:49,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:49,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470410139] [2022-11-18 18:49:49,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:49,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:49,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:49,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470410139] [2022-11-18 18:49:49,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470410139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:49,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:49,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502594295] [2022-11-18 18:49:49,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:49,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:49,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:49,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:49,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:49,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 421 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:49,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:49,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:49,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:50,229 INFO L130 PetriNetUnfolder]: 80/583 cut-off events. [2022-11-18 18:49:50,229 INFO L131 PetriNetUnfolder]: For 84/91 co-relation queries the response was YES. [2022-11-18 18:49:50,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 583 events. 80/583 cut-off events. For 84/91 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2246 event pairs, 60 based on Foata normal form. 211/668 useless extension candidates. Maximal degree in co-relation 614. Up to 157 conditions per place. [2022-11-18 18:49:50,241 INFO L137 encePairwiseOnDemand]: 453/463 looper letters, 36 selfloop transitions, 2 changer transitions 1/413 dead transitions. [2022-11-18 18:49:50,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 413 transitions, 938 flow [2022-11-18 18:49:50,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1291 transitions. [2022-11-18 18:49:50,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9294456443484521 [2022-11-18 18:49:50,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1291 transitions. [2022-11-18 18:49:50,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1291 transitions. [2022-11-18 18:49:50,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:50,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1291 transitions. [2022-11-18 18:49:50,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,285 INFO L175 Difference]: Start difference. First operand has 418 places, 421 transitions, 878 flow. Second operand 3 states and 1291 transitions. [2022-11-18 18:49:50,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 413 transitions, 938 flow [2022-11-18 18:49:50,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 413 transitions, 914 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 18:49:50,300 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 840 flow [2022-11-18 18:49:50,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2022-11-18 18:49:50,307 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2022-11-18 18:49:50,307 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 840 flow [2022-11-18 18:49:50,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:50,308 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] [2022-11-18 18:49:50,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:49:50,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:50,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1730917584, now seen corresponding path program 1 times [2022-11-18 18:49:50,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:50,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122368657] [2022-11-18 18:49:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:50,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:50,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122368657] [2022-11-18 18:49:50,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122368657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:50,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:50,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:50,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959492429] [2022-11-18 18:49:50,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:50,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:50,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:50,464 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:50,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:50,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:50,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:50,685 INFO L130 PetriNetUnfolder]: 80/581 cut-off events. [2022-11-18 18:49:50,685 INFO L131 PetriNetUnfolder]: For 18/24 co-relation queries the response was YES. [2022-11-18 18:49:50,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 581 events. 80/581 cut-off events. For 18/24 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2230 event pairs, 60 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 761. Up to 157 conditions per place. [2022-11-18 18:49:50,696 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 36 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-18 18:49:50,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 411 transitions, 914 flow [2022-11-18 18:49:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:50,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-18 18:49:50,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244060475161987 [2022-11-18 18:49:50,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-18 18:49:50,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-18 18:49:50,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:50,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-18 18:49:50,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,710 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 840 flow. Second operand 3 states and 1284 transitions. [2022-11-18 18:49:50,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 411 transitions, 914 flow [2022-11-18 18:49:50,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 411 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:50,720 INFO L231 Difference]: Finished difference. Result has 405 places, 411 transitions, 838 flow [2022-11-18 18:49:50,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=405, PETRI_TRANSITIONS=411} [2022-11-18 18:49:50,722 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -13 predicate places. [2022-11-18 18:49:50,723 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 411 transitions, 838 flow [2022-11-18 18:49:50,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:50,724 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:50,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:49:50,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:50,725 INFO L85 PathProgramCache]: Analyzing trace with hash 740256022, now seen corresponding path program 1 times [2022-11-18 18:49:50,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:50,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802373415] [2022-11-18 18:49:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:50,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:50,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802373415] [2022-11-18 18:49:50,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802373415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:50,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:50,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:50,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031642101] [2022-11-18 18:49:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:50,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:50,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 411 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:50,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:50,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:50,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:51,056 INFO L130 PetriNetUnfolder]: 80/580 cut-off events. [2022-11-18 18:49:51,057 INFO L131 PetriNetUnfolder]: For 30/36 co-relation queries the response was YES. [2022-11-18 18:49:51,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 580 events. 80/580 cut-off events. For 30/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2205 event pairs, 60 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 742. Up to 157 conditions per place. [2022-11-18 18:49:51,071 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 36 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-18 18:49:51,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 410 transitions, 912 flow [2022-11-18 18:49:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:51,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-18 18:49:51,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244060475161987 [2022-11-18 18:49:51,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:51,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,084 INFO L175 Difference]: Start difference. First operand has 405 places, 411 transitions, 838 flow. Second operand 3 states and 1284 transitions. [2022-11-18 18:49:51,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 410 transitions, 912 flow [2022-11-18 18:49:51,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 410 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:51,092 INFO L231 Difference]: Finished difference. Result has 404 places, 410 transitions, 836 flow [2022-11-18 18:49:51,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=404, PETRI_TRANSITIONS=410} [2022-11-18 18:49:51,096 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2022-11-18 18:49:51,096 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 410 transitions, 836 flow [2022-11-18 18:49:51,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:51,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:49:51,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:51,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1949606868, now seen corresponding path program 1 times [2022-11-18 18:49:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307943009] [2022-11-18 18:49:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:51,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:51,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307943009] [2022-11-18 18:49:51,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307943009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:51,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:51,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:51,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968231281] [2022-11-18 18:49:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:51,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:51,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:51,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:51,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 410 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:51,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:51,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:51,417 INFO L130 PetriNetUnfolder]: 80/579 cut-off events. [2022-11-18 18:49:51,418 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-18 18:49:51,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 579 events. 80/579 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2169 event pairs, 60 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 723. Up to 157 conditions per place. [2022-11-18 18:49:51,429 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 36 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2022-11-18 18:49:51,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 409 transitions, 910 flow [2022-11-18 18:49:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-18 18:49:51,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244060475161987 [2022-11-18 18:49:51,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:51,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,444 INFO L175 Difference]: Start difference. First operand has 404 places, 410 transitions, 836 flow. Second operand 3 states and 1284 transitions. [2022-11-18 18:49:51,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 409 transitions, 910 flow [2022-11-18 18:49:51,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 409 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:51,452 INFO L231 Difference]: Finished difference. Result has 403 places, 409 transitions, 834 flow [2022-11-18 18:49:51,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=403, PETRI_TRANSITIONS=409} [2022-11-18 18:49:51,454 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -15 predicate places. [2022-11-18 18:49:51,454 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 409 transitions, 834 flow [2022-11-18 18:49:51,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,455 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] [2022-11-18 18:49:51,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:49:51,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1482091646, now seen corresponding path program 1 times [2022-11-18 18:49:51,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054125682] [2022-11-18 18:49:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054125682] [2022-11-18 18:49:51,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054125682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:51,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:51,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979434412] [2022-11-18 18:49:51,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:51,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:51,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:51,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:51,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 409 transitions, 834 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:51,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:51,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:51,742 INFO L130 PetriNetUnfolder]: 80/578 cut-off events. [2022-11-18 18:49:51,742 INFO L131 PetriNetUnfolder]: For 54/60 co-relation queries the response was YES. [2022-11-18 18:49:51,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 578 events. 80/578 cut-off events. For 54/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2126 event pairs, 60 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 704. Up to 157 conditions per place. [2022-11-18 18:49:51,751 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 36 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2022-11-18 18:49:51,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 408 transitions, 908 flow [2022-11-18 18:49:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-18 18:49:51,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244060475161987 [2022-11-18 18:49:51,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:51,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-18 18:49:51,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,763 INFO L175 Difference]: Start difference. First operand has 403 places, 409 transitions, 834 flow. Second operand 3 states and 1284 transitions. [2022-11-18 18:49:51,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 408 transitions, 908 flow [2022-11-18 18:49:51,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 408 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:51,771 INFO L231 Difference]: Finished difference. Result has 402 places, 408 transitions, 832 flow [2022-11-18 18:49:51,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=402, PETRI_TRANSITIONS=408} [2022-11-18 18:49:51,775 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -16 predicate places. [2022-11-18 18:49:51,775 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 408 transitions, 832 flow [2022-11-18 18:49:51,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:51,777 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] [2022-11-18 18:49:51,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:49:51,777 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1485355233, now seen corresponding path program 1 times [2022-11-18 18:49:51,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:51,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303277160] [2022-11-18 18:49:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:51,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303277160] [2022-11-18 18:49:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303277160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:51,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:51,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655578470] [2022-11-18 18:49:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:51,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:51,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:51,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:51,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:51,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 463 [2022-11-18 18:49:51,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 408 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:51,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:51,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 463 [2022-11-18 18:49:51,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:49:52,041 INFO L130 PetriNetUnfolder]: 80/577 cut-off events. [2022-11-18 18:49:52,041 INFO L131 PetriNetUnfolder]: For 66/72 co-relation queries the response was YES. [2022-11-18 18:49:52,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 577 events. 80/577 cut-off events. For 66/72 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2128 event pairs, 60 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 684. Up to 156 conditions per place. [2022-11-18 18:49:52,055 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 35 selfloop transitions, 2 changer transitions 0/407 dead transitions. [2022-11-18 18:49:52,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 407 transitions, 904 flow [2022-11-18 18:49:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:49:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:49:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2022-11-18 18:49:52,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9236861051115911 [2022-11-18 18:49:52,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1283 transitions. [2022-11-18 18:49:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1283 transitions. [2022-11-18 18:49:52,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:49:52,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1283 transitions. [2022-11-18 18:49:52,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.6666666666667) internal successors, (1283), 3 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,068 INFO L175 Difference]: Start difference. First operand has 402 places, 408 transitions, 832 flow. Second operand 3 states and 1283 transitions. [2022-11-18 18:49:52,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 407 transitions, 904 flow [2022-11-18 18:49:52,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 407 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:49:52,076 INFO L231 Difference]: Finished difference. Result has 401 places, 407 transitions, 830 flow [2022-11-18 18:49:52,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=401, PETRI_TRANSITIONS=407} [2022-11-18 18:49:52,079 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -17 predicate places. [2022-11-18 18:49:52,080 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 407 transitions, 830 flow [2022-11-18 18:49:52,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:49:52,081 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] [2022-11-18 18:49:52,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:49:52,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:49:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1143953655, now seen corresponding path program 1 times [2022-11-18 18:49:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:52,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499245878] [2022-11-18 18:49:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:52,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:52,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:52,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499245878] [2022-11-18 18:49:52,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499245878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:52,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:52,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:49:52,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286436137] [2022-11-18 18:49:52,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:52,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:49:52,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:52,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:49:52,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:49:52,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:49:52,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 407 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:49:52,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:49:52,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:49:52,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:05,666 INFO L130 PetriNetUnfolder]: 26740/76416 cut-off events. [2022-11-18 18:50:05,667 INFO L131 PetriNetUnfolder]: For 1365/1736 co-relation queries the response was YES. [2022-11-18 18:50:06,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108529 conditions, 76416 events. 26740/76416 cut-off events. For 1365/1736 co-relation queries the response was YES. Maximal size of possible extension queue 3869. Compared 1069678 event pairs, 23895 based on Foata normal form. 0/55614 useless extension candidates. Maximal degree in co-relation 108462. Up to 30742 conditions per place. [2022-11-18 18:50:07,098 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 51 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2022-11-18 18:50:07,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 406 transitions, 934 flow [2022-11-18 18:50:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2022-11-18 18:50:07,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9028077753779697 [2022-11-18 18:50:07,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2022-11-18 18:50:07,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2022-11-18 18:50:07,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:07,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2022-11-18 18:50:07,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,112 INFO L175 Difference]: Start difference. First operand has 401 places, 407 transitions, 830 flow. Second operand 3 states and 1254 transitions. [2022-11-18 18:50:07,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 406 transitions, 934 flow [2022-11-18 18:50:07,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 406 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:07,121 INFO L231 Difference]: Finished difference. Result has 400 places, 406 transitions, 828 flow [2022-11-18 18:50:07,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=400, PETRI_TRANSITIONS=406} [2022-11-18 18:50:07,122 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -18 predicate places. [2022-11-18 18:50:07,123 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 406 transitions, 828 flow [2022-11-18 18:50:07,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:07,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:07,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:50:07,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2022394243, now seen corresponding path program 1 times [2022-11-18 18:50:07,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409305109] [2022-11-18 18:50:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:07,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:07,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409305109] [2022-11-18 18:50:07,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409305109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:07,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:07,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508272704] [2022-11-18 18:50:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:07,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:07,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:07,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 406 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:07,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:07,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:07,347 INFO L130 PetriNetUnfolder]: 65/546 cut-off events. [2022-11-18 18:50:07,347 INFO L131 PetriNetUnfolder]: For 6/11 co-relation queries the response was YES. [2022-11-18 18:50:07,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 546 events. 65/546 cut-off events. For 6/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1931 event pairs, 30 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 653. Up to 90 conditions per place. [2022-11-18 18:50:07,356 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 32 selfloop transitions, 3 changer transitions 0/406 dead transitions. [2022-11-18 18:50:07,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 406 transitions, 903 flow [2022-11-18 18:50:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1295 transitions. [2022-11-18 18:50:07,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323254139668826 [2022-11-18 18:50:07,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:07,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,367 INFO L175 Difference]: Start difference. First operand has 400 places, 406 transitions, 828 flow. Second operand 3 states and 1295 transitions. [2022-11-18 18:50:07,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 406 transitions, 903 flow [2022-11-18 18:50:07,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 406 transitions, 899 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:07,375 INFO L231 Difference]: Finished difference. Result has 395 places, 401 transitions, 825 flow [2022-11-18 18:50:07,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=395, PETRI_TRANSITIONS=401} [2022-11-18 18:50:07,378 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -23 predicate places. [2022-11-18 18:50:07,378 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 401 transitions, 825 flow [2022-11-18 18:50:07,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:07,379 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:07,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:50:07,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2099345529, now seen corresponding path program 1 times [2022-11-18 18:50:07,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:07,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841556216] [2022-11-18 18:50:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841556216] [2022-11-18 18:50:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841556216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:07,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:07,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750976118] [2022-11-18 18:50:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:07,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:07,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:07,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:07,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 401 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:07,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:07,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:07,741 INFO L130 PetriNetUnfolder]: 65/541 cut-off events. [2022-11-18 18:50:07,741 INFO L131 PetriNetUnfolder]: For 16/20 co-relation queries the response was YES. [2022-11-18 18:50:07,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 541 events. 65/541 cut-off events. For 16/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1945 event pairs, 30 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 634. Up to 90 conditions per place. [2022-11-18 18:50:07,748 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 32 selfloop transitions, 3 changer transitions 0/401 dead transitions. [2022-11-18 18:50:07,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 401 transitions, 900 flow [2022-11-18 18:50:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1295 transitions. [2022-11-18 18:50:07,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323254139668826 [2022-11-18 18:50:07,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:07,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1295 transitions. [2022-11-18 18:50:07,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,776 INFO L175 Difference]: Start difference. First operand has 395 places, 401 transitions, 825 flow. Second operand 3 states and 1295 transitions. [2022-11-18 18:50:07,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 401 transitions, 900 flow [2022-11-18 18:50:07,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 401 transitions, 897 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:07,783 INFO L231 Difference]: Finished difference. Result has 391 places, 396 transitions, 823 flow [2022-11-18 18:50:07,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=391, PETRI_TRANSITIONS=396} [2022-11-18 18:50:07,787 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -27 predicate places. [2022-11-18 18:50:07,787 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 396 transitions, 823 flow [2022-11-18 18:50:07,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:07,788 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] [2022-11-18 18:50:07,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:50:07,788 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:07,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:07,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1479418596, now seen corresponding path program 1 times [2022-11-18 18:50:07,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:07,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239966860] [2022-11-18 18:50:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:07,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:07,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239966860] [2022-11-18 18:50:07,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239966860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:07,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:07,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:07,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958543706] [2022-11-18 18:50:07,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:07,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:07,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:07,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:07,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:07,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:07,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 396 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:07,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:07,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:07,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:08,121 INFO L130 PetriNetUnfolder]: 81/896 cut-off events. [2022-11-18 18:50:08,122 INFO L131 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2022-11-18 18:50:08,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 896 events. 81/896 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4418 event pairs, 33 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 994. Up to 90 conditions per place. [2022-11-18 18:50:08,136 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 35 selfloop transitions, 3 changer transitions 0/399 dead transitions. [2022-11-18 18:50:08,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 399 transitions, 913 flow [2022-11-18 18:50:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1298 transitions. [2022-11-18 18:50:08,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9344852411807055 [2022-11-18 18:50:08,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1298 transitions. [2022-11-18 18:50:08,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1298 transitions. [2022-11-18 18:50:08,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:08,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1298 transitions. [2022-11-18 18:50:08,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 432.6666666666667) internal successors, (1298), 3 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,147 INFO L175 Difference]: Start difference. First operand has 391 places, 396 transitions, 823 flow. Second operand 3 states and 1298 transitions. [2022-11-18 18:50:08,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 399 transitions, 913 flow [2022-11-18 18:50:08,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 399 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:08,155 INFO L231 Difference]: Finished difference. Result has 387 places, 391 transitions, 821 flow [2022-11-18 18:50:08,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=387, PETRI_TRANSITIONS=391} [2022-11-18 18:50:08,158 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -31 predicate places. [2022-11-18 18:50:08,158 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 391 transitions, 821 flow [2022-11-18 18:50:08,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:08,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:08,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:50:08,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:08,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash -87068456, now seen corresponding path program 1 times [2022-11-18 18:50:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:08,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143647426] [2022-11-18 18:50:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:08,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:08,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143647426] [2022-11-18 18:50:08,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143647426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:08,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:08,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:08,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623085935] [2022-11-18 18:50:08,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:08,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:08,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:08,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 391 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:08,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:08,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:08,471 INFO L130 PetriNetUnfolder]: 123/936 cut-off events. [2022-11-18 18:50:08,471 INFO L131 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2022-11-18 18:50:08,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 936 events. 123/936 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4836 event pairs, 47 based on Foata normal form. 1/777 useless extension candidates. Maximal degree in co-relation 801. Up to 150 conditions per place. [2022-11-18 18:50:08,488 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 36 selfloop transitions, 3 changer transitions 0/395 dead transitions. [2022-11-18 18:50:08,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 395 transitions, 916 flow [2022-11-18 18:50:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1299 transitions. [2022-11-18 18:50:08,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9352051835853131 [2022-11-18 18:50:08,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1299 transitions. [2022-11-18 18:50:08,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1299 transitions. [2022-11-18 18:50:08,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:08,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1299 transitions. [2022-11-18 18:50:08,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,499 INFO L175 Difference]: Start difference. First operand has 387 places, 391 transitions, 821 flow. Second operand 3 states and 1299 transitions. [2022-11-18 18:50:08,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 395 transitions, 916 flow [2022-11-18 18:50:08,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 395 transitions, 913 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:08,507 INFO L231 Difference]: Finished difference. Result has 383 places, 386 transitions, 819 flow [2022-11-18 18:50:08,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=819, PETRI_PLACES=383, PETRI_TRANSITIONS=386} [2022-11-18 18:50:08,508 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -35 predicate places. [2022-11-18 18:50:08,508 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 386 transitions, 819 flow [2022-11-18 18:50:08,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:08,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:08,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:50:08,510 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash -91411477, now seen corresponding path program 1 times [2022-11-18 18:50:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:08,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425411659] [2022-11-18 18:50:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:08,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:08,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425411659] [2022-11-18 18:50:08,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425411659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:08,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:08,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:08,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715840077] [2022-11-18 18:50:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:08,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:08,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:08,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:08,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 386 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:08,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:08,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:08,951 INFO L130 PetriNetUnfolder]: 136/1506 cut-off events. [2022-11-18 18:50:08,951 INFO L131 PetriNetUnfolder]: For 94/98 co-relation queries the response was YES. [2022-11-18 18:50:08,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1506 events. 136/1506 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9289 event pairs, 59 based on Foata normal form. 0/1285 useless extension candidates. Maximal degree in co-relation 1080. Up to 167 conditions per place. [2022-11-18 18:50:08,973 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 37 selfloop transitions, 3 changer transitions 0/391 dead transitions. [2022-11-18 18:50:08,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 391 transitions, 919 flow [2022-11-18 18:50:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1300 transitions. [2022-11-18 18:50:08,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9359251259899208 [2022-11-18 18:50:08,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1300 transitions. [2022-11-18 18:50:08,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1300 transitions. [2022-11-18 18:50:08,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:08,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1300 transitions. [2022-11-18 18:50:08,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,985 INFO L175 Difference]: Start difference. First operand has 383 places, 386 transitions, 819 flow. Second operand 3 states and 1300 transitions. [2022-11-18 18:50:08,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 391 transitions, 919 flow [2022-11-18 18:50:08,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 391 transitions, 916 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:08,995 INFO L231 Difference]: Finished difference. Result has 379 places, 381 transitions, 817 flow [2022-11-18 18:50:08,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=817, PETRI_PLACES=379, PETRI_TRANSITIONS=381} [2022-11-18 18:50:08,997 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -39 predicate places. [2022-11-18 18:50:08,997 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 381 transitions, 817 flow [2022-11-18 18:50:08,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:08,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:08,998 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] [2022-11-18 18:50:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:50:08,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1947059132, now seen corresponding path program 1 times [2022-11-18 18:50:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705682842] [2022-11-18 18:50:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:09,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705682842] [2022-11-18 18:50:09,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705682842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:09,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:09,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:09,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897861013] [2022-11-18 18:50:09,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:09,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:09,052 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 463 [2022-11-18 18:50:09,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 381 transitions, 817 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:09,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 463 [2022-11-18 18:50:09,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:09,537 INFO L130 PetriNetUnfolder]: 205/1762 cut-off events. [2022-11-18 18:50:09,538 INFO L131 PetriNetUnfolder]: For 185/189 co-relation queries the response was YES. [2022-11-18 18:50:09,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2254 conditions, 1762 events. 205/1762 cut-off events. For 185/189 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11644 event pairs, 104 based on Foata normal form. 1/1499 useless extension candidates. Maximal degree in co-relation 1036. Up to 261 conditions per place. [2022-11-18 18:50:09,556 INFO L137 encePairwiseOnDemand]: 454/463 looper letters, 36 selfloop transitions, 3 changer transitions 8/387 dead transitions. [2022-11-18 18:50:09,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 387 transitions, 920 flow [2022-11-18 18:50:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1300 transitions. [2022-11-18 18:50:09,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9359251259899208 [2022-11-18 18:50:09,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1300 transitions. [2022-11-18 18:50:09,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1300 transitions. [2022-11-18 18:50:09,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:09,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1300 transitions. [2022-11-18 18:50:09,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,567 INFO L175 Difference]: Start difference. First operand has 379 places, 381 transitions, 817 flow. Second operand 3 states and 1300 transitions. [2022-11-18 18:50:09,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 387 transitions, 920 flow [2022-11-18 18:50:09,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 387 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:09,575 INFO L231 Difference]: Finished difference. Result has 375 places, 368 transitions, 799 flow [2022-11-18 18:50:09,576 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=799, PETRI_PLACES=375, PETRI_TRANSITIONS=368} [2022-11-18 18:50:09,577 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -43 predicate places. [2022-11-18 18:50:09,577 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 368 transitions, 799 flow [2022-11-18 18:50:09,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:09,578 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] [2022-11-18 18:50:09,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:50:09,578 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:09,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash 427726989, now seen corresponding path program 1 times [2022-11-18 18:50:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:09,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128004888] [2022-11-18 18:50:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:09,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:09,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128004888] [2022-11-18 18:50:09,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128004888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:09,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:09,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:09,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403123865] [2022-11-18 18:50:09,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:09,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:09,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 463 [2022-11-18 18:50:09,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 368 transitions, 799 flow. Second operand has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:09,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:09,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 463 [2022-11-18 18:50:09,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:17,671 INFO L130 PetriNetUnfolder]: 16691/55209 cut-off events. [2022-11-18 18:50:17,672 INFO L131 PetriNetUnfolder]: For 1608/2188 co-relation queries the response was YES. [2022-11-18 18:50:18,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78893 conditions, 55209 events. 16691/55209 cut-off events. For 1608/2188 co-relation queries the response was YES. Maximal size of possible extension queue 2245. Compared 761311 event pairs, 7678 based on Foata normal form. 5/48007 useless extension candidates. Maximal degree in co-relation 27795. Up to 18943 conditions per place. [2022-11-18 18:50:18,557 INFO L137 encePairwiseOnDemand]: 445/463 looper letters, 30 selfloop transitions, 6 changer transitions 59/367 dead transitions. [2022-11-18 18:50:18,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 367 transitions, 898 flow [2022-11-18 18:50:18,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:18,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-11-18 18:50:18,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9136069114470843 [2022-11-18 18:50:18,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-11-18 18:50:18,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-11-18 18:50:18,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:18,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-11-18 18:50:18,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,573 INFO L175 Difference]: Start difference. First operand has 375 places, 368 transitions, 799 flow. Second operand 3 states and 1269 transitions. [2022-11-18 18:50:18,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 367 transitions, 898 flow [2022-11-18 18:50:18,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 367 transitions, 895 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:18,821 INFO L231 Difference]: Finished difference. Result has 358 places, 303 transitions, 695 flow [2022-11-18 18:50:18,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=358, PETRI_TRANSITIONS=303} [2022-11-18 18:50:18,822 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -60 predicate places. [2022-11-18 18:50:18,822 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 303 transitions, 695 flow [2022-11-18 18:50:18,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:18,823 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] [2022-11-18 18:50:18,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:50:18,824 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:18,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1253586922, now seen corresponding path program 1 times [2022-11-18 18:50:18,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:18,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921779818] [2022-11-18 18:50:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:18,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:18,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:18,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921779818] [2022-11-18 18:50:18,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921779818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:18,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:18,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:18,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502538596] [2022-11-18 18:50:18,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:18,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:18,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:18,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 303 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:18,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:18,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:20,615 INFO L130 PetriNetUnfolder]: 1592/7175 cut-off events. [2022-11-18 18:50:20,615 INFO L131 PetriNetUnfolder]: For 37/57 co-relation queries the response was YES. [2022-11-18 18:50:20,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10116 conditions, 7175 events. 1592/7175 cut-off events. For 37/57 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 77355 event pairs, 442 based on Foata normal form. 0/6037 useless extension candidates. Maximal degree in co-relation 5406. Up to 1524 conditions per place. [2022-11-18 18:50:20,711 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-18 18:50:20,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 307 transitions, 770 flow [2022-11-18 18:50:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:20,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:20,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:20,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:20,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:20,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:20,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:20,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:20,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:20,724 INFO L175 Difference]: Start difference. First operand has 358 places, 303 transitions, 695 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:20,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 307 transitions, 770 flow [2022-11-18 18:50:20,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 307 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:20,733 INFO L231 Difference]: Finished difference. Result has 306 places, 302 transitions, 697 flow [2022-11-18 18:50:20,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=306, PETRI_TRANSITIONS=302} [2022-11-18 18:50:20,734 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -112 predicate places. [2022-11-18 18:50:20,735 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 302 transitions, 697 flow [2022-11-18 18:50:20,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:20,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:20,736 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] [2022-11-18 18:50:20,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:50:20,736 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:20,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:20,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1568621509, now seen corresponding path program 1 times [2022-11-18 18:50:20,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:20,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198805032] [2022-11-18 18:50:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:20,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:20,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198805032] [2022-11-18 18:50:20,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198805032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:20,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542390648] [2022-11-18 18:50:20,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:20,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:20,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:20,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:20,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 302 transitions, 697 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:20,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:20,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:20,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:22,674 INFO L130 PetriNetUnfolder]: 2189/8489 cut-off events. [2022-11-18 18:50:22,675 INFO L131 PetriNetUnfolder]: For 89/117 co-relation queries the response was YES. [2022-11-18 18:50:22,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13097 conditions, 8489 events. 2189/8489 cut-off events. For 89/117 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 92735 event pairs, 838 based on Foata normal form. 0/7379 useless extension candidates. Maximal degree in co-relation 12747. Up to 1755 conditions per place. [2022-11-18 18:50:22,836 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/306 dead transitions. [2022-11-18 18:50:22,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 306 transitions, 772 flow [2022-11-18 18:50:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:22,840 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:22,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:22,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:22,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:22,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:22,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:22,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:22,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:22,849 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 697 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:22,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 306 transitions, 772 flow [2022-11-18 18:50:22,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 306 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:22,858 INFO L231 Difference]: Finished difference. Result has 305 places, 301 transitions, 695 flow [2022-11-18 18:50:22,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=305, PETRI_TRANSITIONS=301} [2022-11-18 18:50:22,859 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -113 predicate places. [2022-11-18 18:50:22,860 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 301 transitions, 695 flow [2022-11-18 18:50:22,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:22,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:22,861 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] [2022-11-18 18:50:22,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:50:22,861 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:22,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1789669962, now seen corresponding path program 1 times [2022-11-18 18:50:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:22,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618888170] [2022-11-18 18:50:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:22,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:22,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618888170] [2022-11-18 18:50:22,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618888170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:22,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:22,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:22,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642491770] [2022-11-18 18:50:22,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:22,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:22,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:22,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:22,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:22,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:22,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 301 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:22,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:22,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:22,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:23,711 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [42#L41-5true, Black: 519#true, Black: 489#true, 514#true, Black: 494#true, 297#L49-2true, 268#L107-4true, Black: 499#true, 509#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true, 228#L73-5true]) [2022-11-18 18:50:23,711 INFO L383 tUnfolder$Statistics]: this new event has 134 ancestors and is cut-off event [2022-11-18 18:50:23,711 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-18 18:50:23,711 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 18:50:23,711 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:23,849 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 362#L73-2true, Black: 519#true, Black: 489#true, 410#L41-2true, 514#true, Black: 494#true, 297#L49-2true, 268#L107-4true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:23,849 INFO L383 tUnfolder$Statistics]: this new event has 140 ancestors and is cut-off event [2022-11-18 18:50:23,849 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 18:50:23,849 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:23,849 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:24,025 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, Black: 514#true, Black: 519#true, Black: 489#true, Black: 494#true, 297#L49-2true, 268#L107-4true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 228#L73-5true, 330#L57-2true]) [2022-11-18 18:50:24,026 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 18:50:24,026 INFO L386 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2022-11-18 18:50:24,026 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-18 18:50:24,026 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-18 18:50:24,072 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, 410#L41-2true, Black: 489#true, Black: 494#true, 297#L49-2true, 268#L107-4true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,072 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 18:50:24,072 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-18 18:50:24,072 INFO L386 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-11-18 18:50:24,072 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, 362#L73-2true, Black: 519#true, Black: 489#true, 514#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,091 INFO L383 tUnfolder$Statistics]: this new event has 143 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L386 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [42#L41-5true, Black: 519#true, Black: 489#true, 514#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 509#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 228#L73-5true, 330#L57-2true]) [2022-11-18 18:50:24,091 INFO L383 tUnfolder$Statistics]: this new event has 140 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 18:50:24,091 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:24,092 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:24,092 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 362#L73-2true, Black: 519#true, Black: 489#true, 410#L41-2true, 514#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,092 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-18 18:50:24,092 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-18 18:50:24,092 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-18 18:50:24,092 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:24,093 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, 362#L73-2true, Black: 519#true, Black: 489#true, 514#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,093 INFO L383 tUnfolder$Statistics]: this new event has 143 ancestors and is cut-off event [2022-11-18 18:50:24,093 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:24,093 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 18:50:24,093 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 18:50:24,094 INFO L386 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2022-11-18 18:50:24,165 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 514#true, Black: 519#true, 410#L41-2true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 509#true, 528#true, 242#L65-2true, 380#L81-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true, 228#L73-5true]) [2022-11-18 18:50:24,166 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-18 18:50:24,166 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-18 18:50:24,167 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-18 18:50:24,167 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:24,309 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, 410#L41-2true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 528#true, 242#L65-2true, 380#L81-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,309 INFO L383 tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2022-11-18 18:50:24,309 INFO L386 tUnfolder$Statistics]: existing Event has 135 ancestors and is cut-off event [2022-11-18 18:50:24,309 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:24,309 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 18:50:24,343 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, 410#L41-2true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,343 INFO L383 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2022-11-18 18:50:24,343 INFO L386 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-11-18 18:50:24,343 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:24,343 INFO L386 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, Black: 514#true, Black: 519#true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 228#L73-5true, 330#L57-2true]) [2022-11-18 18:50:24,344 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,344 INFO L383 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:24,344 INFO L386 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-11-18 18:50:24,345 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 528#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,345 INFO L383 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-11-18 18:50:24,345 INFO L386 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-11-18 18:50:24,345 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-18 18:50:24,345 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:24,346 INFO L386 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-11-18 18:50:24,386 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, Black: 514#true, Black: 519#true, 410#L41-2true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 528#true, 380#L81-2true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 228#L73-5true, 330#L57-2true]) [2022-11-18 18:50:24,387 INFO L383 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2022-11-18 18:50:24,387 INFO L386 tUnfolder$Statistics]: existing Event has 151 ancestors and is cut-off event [2022-11-18 18:50:24,387 INFO L386 tUnfolder$Statistics]: existing Event has 142 ancestors and is cut-off event [2022-11-18 18:50:24,387 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:24,562 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, 42#L41-5true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 528#true, 380#L81-2true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,562 INFO L383 tUnfolder$Statistics]: this new event has 151 ancestors and is cut-off event [2022-11-18 18:50:24,562 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:24,563 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-18 18:50:24,563 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-18 18:50:24,656 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1064] L57-1-->L57-2: Formula: (= |v_#race~n~0_7| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_7|} AuxVars[] AssignedVars[#race~n~0][145], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, 410#L41-2true, Black: 489#true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 528#true, 380#L81-2true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:24,656 INFO L383 tUnfolder$Statistics]: this new event has 154 ancestors and is cut-off event [2022-11-18 18:50:24,656 INFO L386 tUnfolder$Statistics]: existing Event has 135 ancestors and is cut-off event [2022-11-18 18:50:24,656 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 18:50:24,656 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:24,656 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 18:50:25,081 INFO L130 PetriNetUnfolder]: 2457/11284 cut-off events. [2022-11-18 18:50:25,081 INFO L131 PetriNetUnfolder]: For 414/514 co-relation queries the response was YES. [2022-11-18 18:50:25,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16462 conditions, 11284 events. 2457/11284 cut-off events. For 414/514 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 131015 event pairs, 819 based on Foata normal form. 0/9794 useless extension candidates. Maximal degree in co-relation 15282. Up to 2051 conditions per place. [2022-11-18 18:50:25,299 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-18 18:50:25,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 305 transitions, 770 flow [2022-11-18 18:50:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:25,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:25,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:25,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:25,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:25,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:25,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:25,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:25,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:25,314 INFO L175 Difference]: Start difference. First operand has 305 places, 301 transitions, 695 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:25,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 305 transitions, 770 flow [2022-11-18 18:50:25,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 305 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:25,327 INFO L231 Difference]: Finished difference. Result has 304 places, 300 transitions, 693 flow [2022-11-18 18:50:25,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=304, PETRI_TRANSITIONS=300} [2022-11-18 18:50:25,328 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -114 predicate places. [2022-11-18 18:50:25,328 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 300 transitions, 693 flow [2022-11-18 18:50:25,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:25,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:25,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:25,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:50:25,329 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:25,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash -187429401, now seen corresponding path program 1 times [2022-11-18 18:50:25,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:25,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068918533] [2022-11-18 18:50:25,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:25,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:25,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:25,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068918533] [2022-11-18 18:50:25,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068918533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:25,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:25,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:25,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279589319] [2022-11-18 18:50:25,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:25,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:25,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:25,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:25,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:25,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 300 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:25,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:25,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:25,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:26,385 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, 42#L41-5true, 362#L73-2true, Black: 519#true, Black: 489#true, 514#true, 536#true, 69#L49-5true, Black: 494#true, 291#L108-4true, 398#L81-5true, Black: 499#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,385 INFO L383 tUnfolder$Statistics]: this new event has 140 ancestors and is cut-off event [2022-11-18 18:50:26,385 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 18:50:26,385 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:26,385 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:26,428 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, 410#L41-2true, Black: 489#true, 536#true, 69#L49-5true, Black: 494#true, 291#L108-4true, Black: 499#true, 242#L65-2true, 380#L81-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,428 INFO L383 tUnfolder$Statistics]: this new event has 146 ancestors and is cut-off event [2022-11-18 18:50:26,428 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 18:50:26,428 INFO L386 tUnfolder$Statistics]: existing Event has 146 ancestors and is cut-off event [2022-11-18 18:50:26,429 INFO L386 tUnfolder$Statistics]: existing Event has 132 ancestors and is cut-off event [2022-11-18 18:50:26,507 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, 42#L41-5true, 362#L73-2true, Black: 519#true, Black: 489#true, 514#true, 536#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,507 INFO L383 tUnfolder$Statistics]: this new event has 143 ancestors and is cut-off event [2022-11-18 18:50:26,507 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 18:50:26,507 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:26,507 INFO L386 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2022-11-18 18:50:26,545 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, 410#L41-2true, 536#true, Black: 494#true, 297#L49-2true, 291#L108-4true, Black: 499#true, 242#L65-2true, 380#L81-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,545 INFO L383 tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2022-11-18 18:50:26,545 INFO L386 tUnfolder$Statistics]: existing Event has 135 ancestors and is cut-off event [2022-11-18 18:50:26,546 INFO L386 tUnfolder$Statistics]: existing Event has 140 ancestors and is cut-off event [2022-11-18 18:50:26,546 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 18:50:26,577 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, 42#L41-5true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, 536#true, 69#L49-5true, Black: 494#true, 291#L108-4true, 398#L81-5true, Black: 499#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,577 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 18:50:26,578 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-18 18:50:26,578 INFO L386 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-11-18 18:50:26,578 INFO L386 tUnfolder$Statistics]: existing Event has 131 ancestors and is cut-off event [2022-11-18 18:50:26,659 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L65-1-->L65-2: Formula: (= |v_#race~n~0_10| 0) InVars {} OutVars{#race~n~0=|v_#race~n~0_10|} AuxVars[] AssignedVars[#race~n~0][173], [Black: 509#true, 42#L41-5true, Black: 514#true, 362#L73-2true, Black: 519#true, Black: 489#true, 536#true, Black: 494#true, 297#L49-2true, 291#L108-4true, 398#L81-5true, Black: 499#true, 242#L65-2true, 521#(= |#race~n~0| 0), 532#true, Black: 504#true, 330#L57-2true]) [2022-11-18 18:50:26,659 INFO L383 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-11-18 18:50:26,659 INFO L386 tUnfolder$Statistics]: existing Event has 139 ancestors and is cut-off event [2022-11-18 18:50:26,659 INFO L386 tUnfolder$Statistics]: existing Event has 134 ancestors and is cut-off event [2022-11-18 18:50:26,659 INFO L386 tUnfolder$Statistics]: existing Event has 148 ancestors and is cut-off event [2022-11-18 18:50:27,084 INFO L130 PetriNetUnfolder]: 2207/9806 cut-off events. [2022-11-18 18:50:27,085 INFO L131 PetriNetUnfolder]: For 453/537 co-relation queries the response was YES. [2022-11-18 18:50:27,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14379 conditions, 9806 events. 2207/9806 cut-off events. For 453/537 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 109691 event pairs, 740 based on Foata normal form. 0/8494 useless extension candidates. Maximal degree in co-relation 13765. Up to 1834 conditions per place. [2022-11-18 18:50:27,272 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 18:50:27,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 304 transitions, 768 flow [2022-11-18 18:50:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:27,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:27,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:27,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:27,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:27,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:27,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:27,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:27,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:27,287 INFO L175 Difference]: Start difference. First operand has 304 places, 300 transitions, 693 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:27,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 304 transitions, 768 flow [2022-11-18 18:50:27,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 304 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:27,301 INFO L231 Difference]: Finished difference. Result has 303 places, 299 transitions, 691 flow [2022-11-18 18:50:27,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=303, PETRI_TRANSITIONS=299} [2022-11-18 18:50:27,302 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -115 predicate places. [2022-11-18 18:50:27,303 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 299 transitions, 691 flow [2022-11-18 18:50:27,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:27,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:27,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:27,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:50:27,304 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread5Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash -260389847, now seen corresponding path program 1 times [2022-11-18 18:50:27,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:27,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518661544] [2022-11-18 18:50:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:27,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:27,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518661544] [2022-11-18 18:50:27,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518661544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:27,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:27,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:27,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409969596] [2022-11-18 18:50:27,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:27,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:27,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:27,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:27,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:27,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:27,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 299 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:27,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:27,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:27,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:28,921 INFO L130 PetriNetUnfolder]: 1821/7649 cut-off events. [2022-11-18 18:50:28,921 INFO L131 PetriNetUnfolder]: For 457/521 co-relation queries the response was YES. [2022-11-18 18:50:28,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11072 conditions, 7649 events. 1821/7649 cut-off events. For 457/521 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 78553 event pairs, 612 based on Foata normal form. 0/6569 useless extension candidates. Maximal degree in co-relation 10251. Up to 1594 conditions per place. [2022-11-18 18:50:29,046 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-18 18:50:29,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 303 transitions, 766 flow [2022-11-18 18:50:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:29,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:29,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:29,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:29,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:29,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:29,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:29,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:29,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:29,058 INFO L175 Difference]: Start difference. First operand has 303 places, 299 transitions, 691 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:29,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 303 transitions, 766 flow [2022-11-18 18:50:29,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 303 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:29,071 INFO L231 Difference]: Finished difference. Result has 302 places, 298 transitions, 689 flow [2022-11-18 18:50:29,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=302, PETRI_TRANSITIONS=298} [2022-11-18 18:50:29,072 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -116 predicate places. [2022-11-18 18:50:29,072 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 298 transitions, 689 flow [2022-11-18 18:50:29,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:29,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:29,073 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] [2022-11-18 18:50:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:50:29,074 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:29,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1626420513, now seen corresponding path program 1 times [2022-11-18 18:50:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:29,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619987667] [2022-11-18 18:50:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:29,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:29,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619987667] [2022-11-18 18:50:29,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619987667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:29,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:29,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:29,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549051795] [2022-11-18 18:50:29,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:29,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:29,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:29,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:29,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:29,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:50:29,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 298 transitions, 689 flow. Second operand has 6 states, 6 states have (on average 402.5) internal successors, (2415), 6 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:29,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:29,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:50:29,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:30,851 INFO L130 PetriNetUnfolder]: 952/4738 cut-off events. [2022-11-18 18:50:30,851 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-18 18:50:30,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6643 conditions, 4738 events. 952/4738 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 44102 event pairs, 172 based on Foata normal form. 0/4120 useless extension candidates. Maximal degree in co-relation 6281. Up to 1060 conditions per place. [2022-11-18 18:50:30,944 INFO L137 encePairwiseOnDemand]: 458/463 looper letters, 46 selfloop transitions, 4 changer transitions 0/297 dead transitions. [2022-11-18 18:50:30,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 297 transitions, 787 flow [2022-11-18 18:50:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2451 transitions. [2022-11-18 18:50:30,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8822894168466523 [2022-11-18 18:50:30,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2451 transitions. [2022-11-18 18:50:30,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2451 transitions. [2022-11-18 18:50:30,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:30,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2451 transitions. [2022-11-18 18:50:30,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 408.5) internal successors, (2451), 6 states have internal predecessors, (2451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:30,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:30,968 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:30,969 INFO L175 Difference]: Start difference. First operand has 302 places, 298 transitions, 689 flow. Second operand 6 states and 2451 transitions. [2022-11-18 18:50:30,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 297 transitions, 787 flow [2022-11-18 18:50:30,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 297 transitions, 783 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:30,979 INFO L231 Difference]: Finished difference. Result has 304 places, 297 transitions, 691 flow [2022-11-18 18:50:30,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=691, PETRI_PLACES=304, PETRI_TRANSITIONS=297} [2022-11-18 18:50:30,980 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -114 predicate places. [2022-11-18 18:50:30,981 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 297 transitions, 691 flow [2022-11-18 18:50:30,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.5) internal successors, (2415), 6 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:30,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:30,982 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:30,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:50:30,983 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread6Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:30,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1800624235, now seen corresponding path program 1 times [2022-11-18 18:50:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:30,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403580549] [2022-11-18 18:50:30,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:30,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:31,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:31,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403580549] [2022-11-18 18:50:31,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403580549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:31,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:31,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:31,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698076209] [2022-11-18 18:50:31,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:31,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:31,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:31,080 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 463 [2022-11-18 18:50:31,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 297 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:31,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:31,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 463 [2022-11-18 18:50:31,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:32,779 INFO L130 PetriNetUnfolder]: 1513/6421 cut-off events. [2022-11-18 18:50:32,779 INFO L131 PetriNetUnfolder]: For 377/425 co-relation queries the response was YES. [2022-11-18 18:50:32,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9078 conditions, 6421 events. 1513/6421 cut-off events. For 377/425 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 62242 event pairs, 504 based on Foata normal form. 0/5521 useless extension candidates. Maximal degree in co-relation 5845. Up to 1327 conditions per place. [2022-11-18 18:50:32,898 INFO L137 encePairwiseOnDemand]: 460/463 looper letters, 29 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 18:50:32,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 301 transitions, 766 flow [2022-11-18 18:50:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-11-18 18:50:32,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208063354931606 [2022-11-18 18:50:32,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-11-18 18:50:32,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-11-18 18:50:32,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:32,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-11-18 18:50:32,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:32,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:32,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:32,912 INFO L175 Difference]: Start difference. First operand has 304 places, 297 transitions, 691 flow. Second operand 3 states and 1279 transitions. [2022-11-18 18:50:32,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 301 transitions, 766 flow [2022-11-18 18:50:32,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 301 transitions, 759 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:32,923 INFO L231 Difference]: Finished difference. Result has 301 places, 296 transitions, 686 flow [2022-11-18 18:50:32,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=301, PETRI_TRANSITIONS=296} [2022-11-18 18:50:32,925 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -117 predicate places. [2022-11-18 18:50:32,925 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 296 transitions, 686 flow [2022-11-18 18:50:32,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:32,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:32,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:32,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:50:32,927 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:32,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1746432846, now seen corresponding path program 1 times [2022-11-18 18:50:32,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:32,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387691828] [2022-11-18 18:50:32,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:32,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:33,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:33,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387691828] [2022-11-18 18:50:33,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387691828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:33,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:33,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:33,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637963574] [2022-11-18 18:50:33,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:33,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:33,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:33,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:33,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:50:33,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 296 transitions, 686 flow. Second operand has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:33,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:33,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:50:33,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:34,788 INFO L130 PetriNetUnfolder]: 952/4726 cut-off events. [2022-11-18 18:50:34,788 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 18:50:34,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6575 conditions, 4726 events. 952/4726 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 43931 event pairs, 172 based on Foata normal form. 0/4120 useless extension candidates. Maximal degree in co-relation 6325. Up to 1060 conditions per place. [2022-11-18 18:50:34,875 INFO L137 encePairwiseOnDemand]: 458/463 looper letters, 45 selfloop transitions, 4 changer transitions 0/295 dead transitions. [2022-11-18 18:50:34,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 295 transitions, 782 flow [2022-11-18 18:50:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:34,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2450 transitions. [2022-11-18 18:50:34,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819294456443485 [2022-11-18 18:50:34,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2450 transitions. [2022-11-18 18:50:34,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2450 transitions. [2022-11-18 18:50:34,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:34,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2450 transitions. [2022-11-18 18:50:34,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 408.3333333333333) internal successors, (2450), 6 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:34,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:34,895 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:34,895 INFO L175 Difference]: Start difference. First operand has 301 places, 296 transitions, 686 flow. Second operand 6 states and 2450 transitions. [2022-11-18 18:50:34,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 295 transitions, 782 flow [2022-11-18 18:50:34,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 295 transitions, 778 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:34,904 INFO L231 Difference]: Finished difference. Result has 303 places, 295 transitions, 688 flow [2022-11-18 18:50:34,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=688, PETRI_PLACES=303, PETRI_TRANSITIONS=295} [2022-11-18 18:50:34,905 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -115 predicate places. [2022-11-18 18:50:34,905 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 295 transitions, 688 flow [2022-11-18 18:50:34,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.5) internal successors, (2421), 6 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:34,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:34,906 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] [2022-11-18 18:50:34,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:50:34,907 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:34,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:34,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1365575655, now seen corresponding path program 1 times [2022-11-18 18:50:34,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:34,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522622231] [2022-11-18 18:50:34,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:35,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:35,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:35,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522622231] [2022-11-18 18:50:35,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522622231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:35,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:35,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:35,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305483253] [2022-11-18 18:50:35,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:35,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:35,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:35,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:35,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:35,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:50:35,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 295 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:35,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:35,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:50:35,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:36,704 INFO L130 PetriNetUnfolder]: 952/4706 cut-off events. [2022-11-18 18:50:36,704 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:50:36,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6551 conditions, 4706 events. 952/4706 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 43707 event pairs, 172 based on Foata normal form. 0/4120 useless extension candidates. Maximal degree in co-relation 5817. Up to 1060 conditions per place. [2022-11-18 18:50:36,797 INFO L137 encePairwiseOnDemand]: 458/463 looper letters, 44 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2022-11-18 18:50:36,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 294 transitions, 782 flow [2022-11-18 18:50:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2449 transitions. [2022-11-18 18:50:36,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8815694744420446 [2022-11-18 18:50:36,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2449 transitions. [2022-11-18 18:50:36,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2449 transitions. [2022-11-18 18:50:36,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:36,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2449 transitions. [2022-11-18 18:50:36,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 408.1666666666667) internal successors, (2449), 6 states have internal predecessors, (2449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,824 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,824 INFO L175 Difference]: Start difference. First operand has 303 places, 295 transitions, 688 flow. Second operand 6 states and 2449 transitions. [2022-11-18 18:50:36,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 294 transitions, 782 flow [2022-11-18 18:50:36,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 294 transitions, 775 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:36,834 INFO L231 Difference]: Finished difference. Result has 303 places, 294 transitions, 687 flow [2022-11-18 18:50:36,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=687, PETRI_PLACES=303, PETRI_TRANSITIONS=294} [2022-11-18 18:50:36,836 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -115 predicate places. [2022-11-18 18:50:36,836 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 294 transitions, 687 flow [2022-11-18 18:50:36,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:36,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:36,837 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] [2022-11-18 18:50:36,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 18:50:36,838 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash 583830433, now seen corresponding path program 1 times [2022-11-18 18:50:36,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:36,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225597784] [2022-11-18 18:50:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:37,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:37,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225597784] [2022-11-18 18:50:37,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225597784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:37,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:37,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:37,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155524337] [2022-11-18 18:50:37,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:37,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:37,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:37,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:37,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:37,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:50:37,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 294 transitions, 687 flow. Second operand has 6 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:37,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:37,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:50:37,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:38,979 INFO L130 PetriNetUnfolder]: 952/4692 cut-off events. [2022-11-18 18:50:38,979 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 18:50:39,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6585 conditions, 4692 events. 952/4692 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 43588 event pairs, 172 based on Foata normal form. 0/4120 useless extension candidates. Maximal degree in co-relation 5941. Up to 1060 conditions per place. [2022-11-18 18:50:39,052 INFO L137 encePairwiseOnDemand]: 458/463 looper letters, 43 selfloop transitions, 4 changer transitions 0/293 dead transitions. [2022-11-18 18:50:39,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 293 transitions, 779 flow [2022-11-18 18:50:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2448 transitions. [2022-11-18 18:50:39,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8812095032397408 [2022-11-18 18:50:39,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2448 transitions. [2022-11-18 18:50:39,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2448 transitions. [2022-11-18 18:50:39,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:39,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2448 transitions. [2022-11-18 18:50:39,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:39,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:39,072 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:39,072 INFO L175 Difference]: Start difference. First operand has 303 places, 294 transitions, 687 flow. Second operand 6 states and 2448 transitions. [2022-11-18 18:50:39,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 293 transitions, 779 flow [2022-11-18 18:50:39,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 293 transitions, 772 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:39,083 INFO L231 Difference]: Finished difference. Result has 303 places, 293 transitions, 686 flow [2022-11-18 18:50:39,083 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=686, PETRI_PLACES=303, PETRI_TRANSITIONS=293} [2022-11-18 18:50:39,084 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -115 predicate places. [2022-11-18 18:50:39,084 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 293 transitions, 686 flow [2022-11-18 18:50:39,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:39,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:39,086 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] [2022-11-18 18:50:39,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 18:50:39,086 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:39,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1508730747, now seen corresponding path program 1 times [2022-11-18 18:50:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:39,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788388534] [2022-11-18 18:50:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:39,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:50:39,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:39,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788388534] [2022-11-18 18:50:40,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788388534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:40,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:40,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832379945] [2022-11-18 18:50:40,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:40,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:40,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:40,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 463 [2022-11-18 18:50:40,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 293 transitions, 686 flow. Second operand has 6 states, 6 states have (on average 406.5) internal successors, (2439), 6 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:40,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:40,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 463 [2022-11-18 18:50:40,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:41,255 INFO L130 PetriNetUnfolder]: 952/4686 cut-off events. [2022-11-18 18:50:41,255 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 18:50:41,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6561 conditions, 4686 events. 952/4686 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 43596 event pairs, 172 based on Foata normal form. 0/4120 useless extension candidates. Maximal degree in co-relation 6217. Up to 1060 conditions per place. [2022-11-18 18:50:41,327 INFO L137 encePairwiseOnDemand]: 458/463 looper letters, 42 selfloop transitions, 4 changer transitions 0/292 dead transitions. [2022-11-18 18:50:41,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 292 transitions, 776 flow [2022-11-18 18:50:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2447 transitions. [2022-11-18 18:50:41,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.880849532037437 [2022-11-18 18:50:41,335 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2447 transitions. [2022-11-18 18:50:41,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2447 transitions. [2022-11-18 18:50:41,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:41,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2447 transitions. [2022-11-18 18:50:41,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 407.8333333333333) internal successors, (2447), 6 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:41,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:41,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:41,345 INFO L175 Difference]: Start difference. First operand has 303 places, 293 transitions, 686 flow. Second operand 6 states and 2447 transitions. [2022-11-18 18:50:41,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 292 transitions, 776 flow [2022-11-18 18:50:41,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 292 transitions, 769 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:41,355 INFO L231 Difference]: Finished difference. Result has 303 places, 292 transitions, 685 flow [2022-11-18 18:50:41,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=685, PETRI_PLACES=303, PETRI_TRANSITIONS=292} [2022-11-18 18:50:41,356 INFO L288 CegarLoopForPetriNet]: 418 programPoint places, -115 predicate places. [2022-11-18 18:50:41,357 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 292 transitions, 685 flow [2022-11-18 18:50:41,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.5) internal successors, (2439), 6 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:41,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:41,358 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, 1, 1] [2022-11-18 18:50:41,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 18:50:41,358 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 99 more)] === [2022-11-18 18:50:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2091707096, now seen corresponding path program 1 times [2022-11-18 18:50:41,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:41,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328655108] [2022-11-18 18:50:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:41,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat