./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a --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 a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 --- 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-b5237d8 [2022-11-21 09:10:04,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:10:04,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:10:04,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:10:04,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:10:04,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:10:04,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:10:04,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:10:04,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:10:04,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:10:04,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:10:04,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:10:04,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:10:04,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:10:04,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:10:04,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:10:04,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:10:04,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:10:04,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:10:04,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:10:04,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:10:04,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:10:04,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:10:04,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:10:04,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:10:04,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:10:04,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:10:04,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:10:04,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:10:04,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:10:04,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:10:04,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:10:04,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:10:04,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:10:04,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:10:04,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:10:04,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:10:04,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:10:04,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:10:04,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:10:04,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:10:04,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 09:10:04,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:10:04,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:10:04,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:10:04,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:10:04,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:10:04,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:10:04,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:10:04,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:10:04,197 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:10:04,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:10:04,199 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:10:04,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:10:04,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:10:04,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:10:04,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:10:04,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:10:04,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:10:04,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:10:04,201 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 09:10:04,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:10:04,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:10:04,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:10:04,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:10:04,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:10:04,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:10:04,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:10:04,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:10:04,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:10:04,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:10:04,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:10:04,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:10:04,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:10:04,205 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:10:04,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:10:04,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:10:04,206 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_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2022-11-21 09:10:04,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:10:04,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:10:04,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:10:04,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:10:04,538 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:10:04,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-21 09:10:08,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:10:08,515 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:10:08,516 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-21 09:10:08,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/data/8952cc925/bb974eadc9744b7786ef1fdf8a996477/FLAG9a3d4db76 [2022-11-21 09:10:08,546 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/data/8952cc925/bb974eadc9744b7786ef1fdf8a996477 [2022-11-21 09:10:08,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:10:08,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:10:08,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:10:08,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:10:08,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:10:08,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:10:08" (1/1) ... [2022-11-21 09:10:08,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67160523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:08, skipping insertion in model container [2022-11-21 09:10:08,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:10:08" (1/1) ... [2022-11-21 09:10:08,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:10:08,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:10:08,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-21 09:10:08,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:10:08,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:10:08,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-21 09:10:08,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:10:09,013 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:10:09,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09 WrapperNode [2022-11-21 09:10:09,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:10:09,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:10:09,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:10:09,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:10:09,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,087 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 218 [2022-11-21 09:10:09,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:10:09,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:10:09,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:10:09,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:10:09,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:10:09,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:10:09,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:10:09,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:10:09,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (1/1) ... [2022-11-21 09:10:09,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:10:09,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:09,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e33a41cd-5d1d-43ec-b3a3-a727b0940a6f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:10:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:10:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 09:10:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 09:10:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 09:10:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 09:10:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 09:10:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 09:10:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:10:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:10:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:10:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:10:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:10:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:10:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:10:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:10:09,293 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:10:09,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:10:09,484 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:10:10,387 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:10:10,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:10:10,413 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-21 09:10:10,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:10 BoogieIcfgContainer [2022-11-21 09:10:10,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:10:10,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:10:10,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:10:10,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:10:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:10:08" (1/3) ... [2022-11-21 09:10:10,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de01de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:10:10, skipping insertion in model container [2022-11-21 09:10:10,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:09" (2/3) ... [2022-11-21 09:10:10,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de01de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:10:10, skipping insertion in model container [2022-11-21 09:10:10,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:10" (3/3) ... [2022-11-21 09:10:10,443 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2022-11-21 09:10:10,454 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:10:10,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:10:10,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-21 09:10:10,471 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:10:10,680 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 09:10:10,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 383 transitions, 790 flow [2022-11-21 09:10:11,010 INFO L130 PetriNetUnfolder]: 19/380 cut-off events. [2022-11-21 09:10:11,011 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 09:10:11,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 380 events. 19/380 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 256. Up to 2 conditions per place. [2022-11-21 09:10:11,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 383 transitions, 790 flow [2022-11-21 09:10:11,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 358 transitions, 734 flow [2022-11-21 09:10:11,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:10:11,065 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;@365e0027, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:10:11,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-21 09:10:11,072 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-21 09:10:11,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:10:11,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:11,073 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] [2022-11-21 09:10:11,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:11,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash 943271656, now seen corresponding path program 1 times [2022-11-21 09:10:11,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:11,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918606139] [2022-11-21 09:10:11,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:11,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:11,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918606139] [2022-11-21 09:10:11,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918606139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:11,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:11,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:11,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932983730] [2022-11-21 09:10:11,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:11,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:11,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-21 09:10:11,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 358 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:11,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:11,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-21 09:10:11,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:11,920 INFO L130 PetriNetUnfolder]: 62/755 cut-off events. [2022-11-21 09:10:11,921 INFO L131 PetriNetUnfolder]: For 81/93 co-relation queries the response was YES. [2022-11-21 09:10:11,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 755 events. 62/755 cut-off events. For 81/93 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3288 event pairs, 39 based on Foata normal form. 38/646 useless extension candidates. Maximal degree in co-relation 604. Up to 99 conditions per place. [2022-11-21 09:10:11,937 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 21 selfloop transitions, 2 changer transitions 6/346 dead transitions. [2022-11-21 09:10:11,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 346 transitions, 756 flow [2022-11-21 09:10:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1073 transitions. [2022-11-21 09:10:11,970 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338555265448216 [2022-11-21 09:10:11,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1073 transitions. [2022-11-21 09:10:11,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1073 transitions. [2022-11-21 09:10:11,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:11,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1073 transitions. [2022-11-21 09:10:11,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.6666666666667) internal successors, (1073), 3 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,007 INFO L175 Difference]: Start difference. First operand has 350 places, 358 transitions, 734 flow. Second operand 3 states and 1073 transitions. [2022-11-21 09:10:12,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 346 transitions, 756 flow [2022-11-21 09:10:12,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 346 transitions, 744 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 09:10:12,028 INFO L231 Difference]: Finished difference. Result has 345 places, 340 transitions, 690 flow [2022-11-21 09:10:12,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=345, PETRI_TRANSITIONS=340} [2022-11-21 09:10:12,040 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -5 predicate places. [2022-11-21 09:10:12,040 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 340 transitions, 690 flow [2022-11-21 09:10:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:12,042 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] [2022-11-21 09:10:12,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:10:12,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash -239799142, now seen corresponding path program 1 times [2022-11-21 09:10:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:12,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761516031] [2022-11-21 09:10:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:12,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:12,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761516031] [2022-11-21 09:10:12,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761516031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:12,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:12,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:12,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428250655] [2022-11-21 09:10:12,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:12,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:12,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:12,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 383 [2022-11-21 09:10:12,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 340 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:12,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 383 [2022-11-21 09:10:12,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:12,466 INFO L130 PetriNetUnfolder]: 38/647 cut-off events. [2022-11-21 09:10:12,466 INFO L131 PetriNetUnfolder]: For 9/26 co-relation queries the response was YES. [2022-11-21 09:10:12,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 647 events. 38/647 cut-off events. For 9/26 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2537 event pairs, 21 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 710. Up to 80 conditions per place. [2022-11-21 09:10:12,475 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 27 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2022-11-21 09:10:12,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 339 transitions, 746 flow [2022-11-21 09:10:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1050 transitions. [2022-11-21 09:10:12,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9138381201044387 [2022-11-21 09:10:12,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1050 transitions. [2022-11-21 09:10:12,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1050 transitions. [2022-11-21 09:10:12,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:12,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1050 transitions. [2022-11-21 09:10:12,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,491 INFO L175 Difference]: Start difference. First operand has 345 places, 340 transitions, 690 flow. Second operand 3 states and 1050 transitions. [2022-11-21 09:10:12,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 339 transitions, 746 flow [2022-11-21 09:10:12,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 339 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:10:12,506 INFO L231 Difference]: Finished difference. Result has 338 places, 339 transitions, 688 flow [2022-11-21 09:10:12,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=338, PETRI_TRANSITIONS=339} [2022-11-21 09:10:12,508 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -12 predicate places. [2022-11-21 09:10:12,508 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 339 transitions, 688 flow [2022-11-21 09:10:12,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:12,510 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] [2022-11-21 09:10:12,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:10:12,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1881339077, now seen corresponding path program 1 times [2022-11-21 09:10:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:12,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601115141] [2022-11-21 09:10:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:12,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:12,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:12,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601115141] [2022-11-21 09:10:12,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601115141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:12,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:12,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137995096] [2022-11-21 09:10:12,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:12,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:12,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:12,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:12,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:12,626 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 383 [2022-11-21 09:10:12,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 339 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:12,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 383 [2022-11-21 09:10:12,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:12,856 INFO L130 PetriNetUnfolder]: 27/591 cut-off events. [2022-11-21 09:10:12,856 INFO L131 PetriNetUnfolder]: For 8/17 co-relation queries the response was YES. [2022-11-21 09:10:12,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 591 events. 27/591 cut-off events. For 8/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2089 event pairs, 12 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 615. Up to 50 conditions per place. [2022-11-21 09:10:12,865 INFO L137 encePairwiseOnDemand]: 376/383 looper letters, 19 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-21 09:10:12,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 333 transitions, 716 flow [2022-11-21 09:10:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:12,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1055 transitions. [2022-11-21 09:10:12,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.918189730200174 [2022-11-21 09:10:12,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1055 transitions. [2022-11-21 09:10:12,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1055 transitions. [2022-11-21 09:10:12,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:12,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1055 transitions. [2022-11-21 09:10:12,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,882 INFO L175 Difference]: Start difference. First operand has 338 places, 339 transitions, 688 flow. Second operand 3 states and 1055 transitions. [2022-11-21 09:10:12,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 333 transitions, 716 flow [2022-11-21 09:10:12,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 712 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:10:12,893 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 674 flow [2022-11-21 09:10:12,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2022-11-21 09:10:12,896 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-21 09:10:12,896 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 674 flow [2022-11-21 09:10:12,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:12,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:12,898 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:12,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:10:12,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:12,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1945569182, now seen corresponding path program 1 times [2022-11-21 09:10:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:12,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600288144] [2022-11-21 09:10:12,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:12,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:13,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:13,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600288144] [2022-11-21 09:10:13,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600288144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:13,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:13,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:13,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223020864] [2022-11-21 09:10:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:13,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:13,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:13,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:13,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:13,077 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-21 09:10:13,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:13,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:13,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-21 09:10:13,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:13,612 INFO L130 PetriNetUnfolder]: 226/1810 cut-off events. [2022-11-21 09:10:13,612 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-21 09:10:13,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 1810 events. 226/1810 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13499 event pairs, 135 based on Foata normal form. 0/1482 useless extension candidates. Maximal degree in co-relation 2122. Up to 325 conditions per place. [2022-11-21 09:10:13,637 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2022-11-21 09:10:13,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 332 transitions, 718 flow [2022-11-21 09:10:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-21 09:10:13,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-21 09:10:13,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-21 09:10:13,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-21 09:10:13,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:13,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-21 09:10:13,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:13,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:13,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:13,658 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 674 flow. Second operand 3 states and 1062 transitions. [2022-11-21 09:10:13,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 332 transitions, 718 flow [2022-11-21 09:10:13,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 332 transitions, 717 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:10:13,669 INFO L231 Difference]: Finished difference. Result has 332 places, 332 transitions, 675 flow [2022-11-21 09:10:13,670 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=332, PETRI_TRANSITIONS=332} [2022-11-21 09:10:13,673 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-21 09:10:13,673 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 332 transitions, 675 flow [2022-11-21 09:10:13,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:13,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:13,675 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] [2022-11-21 09:10:13,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:10:13,675 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:13,676 INFO L85 PathProgramCache]: Analyzing trace with hash 89045610, now seen corresponding path program 1 times [2022-11-21 09:10:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567239982] [2022-11-21 09:10:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:14,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567239982] [2022-11-21 09:10:14,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567239982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:14,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:14,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:10:14,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483638918] [2022-11-21 09:10:14,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:14,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:10:14,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:14,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:10:14,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:10:14,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 383 [2022-11-21 09:10:14,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 332 transitions, 675 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:14,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:14,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 383 [2022-11-21 09:10:14,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:36,537 INFO L130 PetriNetUnfolder]: 46936/99170 cut-off events. [2022-11-21 09:10:36,538 INFO L131 PetriNetUnfolder]: For 337/557 co-relation queries the response was YES. [2022-11-21 09:10:36,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163162 conditions, 99170 events. 46936/99170 cut-off events. For 337/557 co-relation queries the response was YES. Maximal size of possible extension queue 2929. Compared 1141274 event pairs, 42984 based on Foata normal form. 0/80984 useless extension candidates. Maximal degree in co-relation 163124. Up to 63794 conditions per place. [2022-11-21 09:10:37,866 INFO L137 encePairwiseOnDemand]: 371/383 looper letters, 93 selfloop transitions, 10 changer transitions 0/330 dead transitions. [2022-11-21 09:10:37,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 330 transitions, 877 flow [2022-11-21 09:10:37,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:10:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 09:10:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1689 transitions. [2022-11-21 09:10:37,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349869451697127 [2022-11-21 09:10:37,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1689 transitions. [2022-11-21 09:10:37,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1689 transitions. [2022-11-21 09:10:37,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:37,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1689 transitions. [2022-11-21 09:10:37,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:37,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:37,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:37,889 INFO L175 Difference]: Start difference. First operand has 332 places, 332 transitions, 675 flow. Second operand 6 states and 1689 transitions. [2022-11-21 09:10:37,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 330 transitions, 877 flow [2022-11-21 09:10:37,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 330 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:10:37,900 INFO L231 Difference]: Finished difference. Result has 333 places, 330 transitions, 687 flow [2022-11-21 09:10:37,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=687, PETRI_PLACES=333, PETRI_TRANSITIONS=330} [2022-11-21 09:10:37,904 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -17 predicate places. [2022-11-21 09:10:37,904 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 330 transitions, 687 flow [2022-11-21 09:10:37,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:37,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:37,908 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:37,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:10:37,908 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:37,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:37,910 INFO L85 PathProgramCache]: Analyzing trace with hash -188757247, now seen corresponding path program 1 times [2022-11-21 09:10:37,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:37,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267932887] [2022-11-21 09:10:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:37,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:38,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:38,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267932887] [2022-11-21 09:10:38,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267932887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:38,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:38,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:38,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065008535] [2022-11-21 09:10:38,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:38,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:38,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:38,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:38,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:38,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-21 09:10:38,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 330 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:38,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-21 09:10:38,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:38,314 INFO L130 PetriNetUnfolder]: 226/1694 cut-off events. [2022-11-21 09:10:38,314 INFO L131 PetriNetUnfolder]: For 42/49 co-relation queries the response was YES. [2022-11-21 09:10:38,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 1694 events. 226/1694 cut-off events. For 42/49 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12474 event pairs, 135 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 2028. Up to 331 conditions per place. [2022-11-21 09:10:38,329 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2022-11-21 09:10:38,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 329 transitions, 731 flow [2022-11-21 09:10:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-21 09:10:38,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-21 09:10:38,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-21 09:10:38,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-21 09:10:38,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:38,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-21 09:10:38,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,343 INFO L175 Difference]: Start difference. First operand has 333 places, 330 transitions, 687 flow. Second operand 3 states and 1062 transitions. [2022-11-21 09:10:38,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 329 transitions, 731 flow [2022-11-21 09:10:38,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 711 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 09:10:38,352 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 669 flow [2022-11-21 09:10:38,353 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2022-11-21 09:10:38,354 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -21 predicate places. [2022-11-21 09:10:38,354 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 669 flow [2022-11-21 09:10:38,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:38,355 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] [2022-11-21 09:10:38,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:10:38,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:38,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1424858210, now seen corresponding path program 1 times [2022-11-21 09:10:38,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:38,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906666898] [2022-11-21 09:10:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:38,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:38,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:38,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906666898] [2022-11-21 09:10:38,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906666898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:38,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:38,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297262938] [2022-11-21 09:10:38,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:38,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:38,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:38,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:38,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:38,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-21 09:10:38,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:38,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-21 09:10:38,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:38,557 INFO L130 PetriNetUnfolder]: 39/625 cut-off events. [2022-11-21 09:10:38,558 INFO L131 PetriNetUnfolder]: For 13/19 co-relation queries the response was YES. [2022-11-21 09:10:38,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 625 events. 39/625 cut-off events. For 13/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2339 event pairs, 20 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 654. Up to 56 conditions per place. [2022-11-21 09:10:38,563 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 15 selfloop transitions, 1 changer transitions 0/325 dead transitions. [2022-11-21 09:10:38,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 325 transitions, 693 flow [2022-11-21 09:10:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:38,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2022-11-21 09:10:38,568 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9286335944299391 [2022-11-21 09:10:38,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1067 transitions. [2022-11-21 09:10:38,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1067 transitions. [2022-11-21 09:10:38,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:38,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1067 transitions. [2022-11-21 09:10:38,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.6666666666667) internal successors, (1067), 3 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,577 INFO L175 Difference]: Start difference. First operand has 329 places, 329 transitions, 669 flow. Second operand 3 states and 1067 transitions. [2022-11-21 09:10:38,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 325 transitions, 693 flow [2022-11-21 09:10:38,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 325 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:10:38,586 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 659 flow [2022-11-21 09:10:38,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2022-11-21 09:10:38,588 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -25 predicate places. [2022-11-21 09:10:38,588 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 659 flow [2022-11-21 09:10:38,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:38,589 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] [2022-11-21 09:10:38,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:10:38,590 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:38,591 INFO L85 PathProgramCache]: Analyzing trace with hash -835366874, now seen corresponding path program 1 times [2022-11-21 09:10:38,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:38,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456419634] [2022-11-21 09:10:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:38,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456419634] [2022-11-21 09:10:38,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456419634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:38,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:38,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840113439] [2022-11-21 09:10:38,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:38,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:38,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:38,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:38,675 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-21 09:10:38,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:38,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-21 09:10:38,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:38,926 INFO L130 PetriNetUnfolder]: 118/1263 cut-off events. [2022-11-21 09:10:38,926 INFO L131 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2022-11-21 09:10:38,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 1263 events. 118/1263 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7925 event pairs, 22 based on Foata normal form. 1/1106 useless extension candidates. Maximal degree in co-relation 1415. Up to 164 conditions per place. [2022-11-21 09:10:38,935 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-21 09:10:38,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 330 transitions, 724 flow [2022-11-21 09:10:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:38,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-21 09:10:38,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-21 09:10:38,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-21 09:10:38,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-21 09:10:38,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:38,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-21 09:10:38,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,949 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 659 flow. Second operand 3 states and 1076 transitions. [2022-11-21 09:10:38,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 330 transitions, 724 flow [2022-11-21 09:10:38,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 330 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:10:38,958 INFO L231 Difference]: Finished difference. Result has 323 places, 325 transitions, 678 flow [2022-11-21 09:10:38,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=323, PETRI_TRANSITIONS=325} [2022-11-21 09:10:38,960 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -27 predicate places. [2022-11-21 09:10:38,960 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 325 transitions, 678 flow [2022-11-21 09:10:38,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:38,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:38,961 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] [2022-11-21 09:10:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:10:38,962 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 371346824, now seen corresponding path program 1 times [2022-11-21 09:10:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:38,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821691443] [2022-11-21 09:10:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:39,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:39,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821691443] [2022-11-21 09:10:39,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821691443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:39,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:39,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550116691] [2022-11-21 09:10:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:39,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:39,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:39,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:39,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-21 09:10:39,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 325 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:39,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-21 09:10:39,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:39,392 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [30#L64-1true, 406#(= |#race~M~0| 0), 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 215#L48-3true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-21 09:10:39,392 INFO L383 tUnfolder$Statistics]: this new event has 195 ancestors and is cut-off event [2022-11-21 09:10:39,392 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-21 09:10:39,392 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-21 09:10:39,393 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-21 09:10:39,395 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 20#L48-4true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-21 09:10:39,395 INFO L383 tUnfolder$Statistics]: this new event has 196 ancestors and is cut-off event [2022-11-21 09:10:39,395 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-21 09:10:39,395 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-21 09:10:39,395 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-21 09:10:39,405 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 410#(= |#race~B~0| 0), 232#L85-7true]) [2022-11-21 09:10:39,405 INFO L383 tUnfolder$Statistics]: this new event has 203 ancestors and is cut-off event [2022-11-21 09:10:39,405 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-21 09:10:39,405 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-21 09:10:39,406 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-21 09:10:39,409 INFO L130 PetriNetUnfolder]: 190/1670 cut-off events. [2022-11-21 09:10:39,409 INFO L131 PetriNetUnfolder]: For 35/40 co-relation queries the response was YES. [2022-11-21 09:10:39,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 1670 events. 190/1670 cut-off events. For 35/40 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11600 event pairs, 45 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 1960. Up to 207 conditions per place. [2022-11-21 09:10:39,426 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-21 09:10:39,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 330 transitions, 743 flow [2022-11-21 09:10:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:10:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-21 09:10:39,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-21 09:10:39,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-21 09:10:39,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-21 09:10:39,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:39,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-21 09:10:39,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,439 INFO L175 Difference]: Start difference. First operand has 323 places, 325 transitions, 678 flow. Second operand 3 states and 1076 transitions. [2022-11-21 09:10:39,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 330 transitions, 743 flow [2022-11-21 09:10:39,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 330 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 09:10:39,448 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 698 flow [2022-11-21 09:10:39,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2022-11-21 09:10:39,451 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2022-11-21 09:10:39,451 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 698 flow [2022-11-21 09:10:39,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:39,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:39,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:10:39,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:39,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash -265555636, now seen corresponding path program 1 times [2022-11-21 09:10:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:39,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173636201] [2022-11-21 09:10:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:39,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:39,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173636201] [2022-11-21 09:10:39,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173636201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:39,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:39,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:10:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102033684] [2022-11-21 09:10:39,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:39,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:10:39,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:39,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:10:39,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:10:39,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 383 [2022-11-21 09:10:39,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 698 flow. Second operand has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:39,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:39,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 383 [2022-11-21 09:10:39,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:41,055 INFO L130 PetriNetUnfolder]: 569/2993 cut-off events. [2022-11-21 09:10:41,055 INFO L131 PetriNetUnfolder]: For 73/158 co-relation queries the response was YES. [2022-11-21 09:10:41,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2993 events. 569/2993 cut-off events. For 73/158 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 23020 event pairs, 261 based on Foata normal form. 0/2515 useless extension candidates. Maximal degree in co-relation 4298. Up to 737 conditions per place. [2022-11-21 09:10:41,091 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 126 selfloop transitions, 18 changer transitions 0/404 dead transitions. [2022-11-21 09:10:41,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 404 transitions, 1160 flow [2022-11-21 09:10:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:10:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 09:10:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3479 transitions. [2022-11-21 09:10:41,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257773558034655 [2022-11-21 09:10:41,102 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3479 transitions. [2022-11-21 09:10:41,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3479 transitions. [2022-11-21 09:10:41,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:41,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3479 transitions. [2022-11-21 09:10:41,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 316.27272727272725) internal successors, (3479), 11 states have internal predecessors, (3479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:41,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:41,148 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:41,149 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 698 flow. Second operand 11 states and 3479 transitions. [2022-11-21 09:10:41,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 404 transitions, 1160 flow [2022-11-21 09:10:41,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 404 transitions, 1160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 09:10:41,161 INFO L231 Difference]: Finished difference. Result has 336 places, 335 transitions, 784 flow [2022-11-21 09:10:41,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=784, PETRI_PLACES=336, PETRI_TRANSITIONS=335} [2022-11-21 09:10:41,164 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -14 predicate places. [2022-11-21 09:10:41,165 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 335 transitions, 784 flow [2022-11-21 09:10:41,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:41,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:41,166 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] [2022-11-21 09:10:41,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:10:41,167 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:41,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:41,168 INFO L85 PathProgramCache]: Analyzing trace with hash 308665052, now seen corresponding path program 1 times [2022-11-21 09:10:41,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:41,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103139787] [2022-11-21 09:10:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:41,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:41,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:41,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103139787] [2022-11-21 09:10:41,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103139787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:41,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:41,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:10:41,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055050202] [2022-11-21 09:10:41,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:41,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:10:41,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:10:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:41,393 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 383 [2022-11-21 09:10:41,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 335 transitions, 784 flow. Second operand has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:41,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:41,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 383 [2022-11-21 09:10:41,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:10:42,419 INFO L130 PetriNetUnfolder]: 618/4184 cut-off events. [2022-11-21 09:10:42,419 INFO L131 PetriNetUnfolder]: For 301/366 co-relation queries the response was YES. [2022-11-21 09:10:42,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5691 conditions, 4184 events. 618/4184 cut-off events. For 301/366 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 39021 event pairs, 360 based on Foata normal form. 7/3760 useless extension candidates. Maximal degree in co-relation 5642. Up to 792 conditions per place. [2022-11-21 09:10:42,466 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 45 selfloop transitions, 4 changer transitions 0/349 dead transitions. [2022-11-21 09:10:42,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 349 transitions, 918 flow [2022-11-21 09:10:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:42,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 09:10:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1725 transitions. [2022-11-21 09:10:42,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9007832898172323 [2022-11-21 09:10:42,473 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1725 transitions. [2022-11-21 09:10:42,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1725 transitions. [2022-11-21 09:10:42,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:42,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1725 transitions. [2022-11-21 09:10:42,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.0) internal successors, (1725), 5 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:42,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:42,487 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:42,487 INFO L175 Difference]: Start difference. First operand has 336 places, 335 transitions, 784 flow. Second operand 5 states and 1725 transitions. [2022-11-21 09:10:42,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 349 transitions, 918 flow [2022-11-21 09:10:42,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 349 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:10:42,500 INFO L231 Difference]: Finished difference. Result has 340 places, 336 transitions, 796 flow [2022-11-21 09:10:42,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=796, PETRI_PLACES=340, PETRI_TRANSITIONS=336} [2022-11-21 09:10:42,502 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -10 predicate places. [2022-11-21 09:10:42,502 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 336 transitions, 796 flow [2022-11-21 09:10:42,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:42,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:10:42,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:10:42,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 09:10:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2096028094, now seen corresponding path program 1 times [2022-11-21 09:10:42,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:42,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25894123] [2022-11-21 09:10:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:43,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25894123] [2022-11-21 09:10:43,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25894123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:43,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:43,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:10:43,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629355196] [2022-11-21 09:10:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:43,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:10:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:10:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:10:43,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 383 [2022-11-21 09:10:43,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 336 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 282.0) internal successors, (1692), 6 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:43,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:10:43,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 383 [2022-11-21 09:10:43,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand