./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:58:21,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:58:21,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:58:21,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:58:21,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:58:21,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:58:21,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:58:21,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:58:21,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:58:21,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:58:21,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:58:21,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:58:21,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:58:21,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:58:21,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:58:21,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:58:21,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:58:21,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:58:21,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:58:21,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:58:21,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:58:21,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:58:21,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:58:21,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:58:21,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:58:21,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:58:21,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:58:21,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:58:21,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:58:21,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:58:21,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:58:21,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:58:21,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:58:21,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:58:21,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:58:21,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:58:21,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:58:21,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:58:21,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:58:21,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:58:21,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:58:21,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:58:21,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:58:21,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:58:21,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:58:21,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:58:21,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:58:21,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:58:21,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:58:21,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:58:21,271 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:58:21,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:58:21,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:58:21,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:58:21,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:58:21,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:58:21,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:58:21,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:58:21,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:58:21,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:58:21,274 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:58:21,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:58:21,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:58:21,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:58:21,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:58:21,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:58:21,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:58:21,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:58:21,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:21,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:58:21,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:58:21,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:58:21,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:58:21,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:58:21,278 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:58:21,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:58:21,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:58:21,279 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_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 [2022-11-18 20:58:21,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:58:21,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:58:21,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:58:21,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:58:21,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:58:21,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-18 20:58:21,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/data/f36697d3b/823e09a91d9b4d4db4fd479cb4fd1604/FLAGb659fc750 [2022-11-18 20:58:22,272 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:58:22,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-18 20:58:22,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/data/f36697d3b/823e09a91d9b4d4db4fd479cb4fd1604/FLAGb659fc750 [2022-11-18 20:58:22,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/data/f36697d3b/823e09a91d9b4d4db4fd479cb4fd1604 [2022-11-18 20:58:22,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:58:22,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:58:22,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:22,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:58:22,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:58:22,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:22" (1/1) ... [2022-11-18 20:58:22,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfe1e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:22, skipping insertion in model container [2022-11-18 20:58:22,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:22" (1/1) ... [2022-11-18 20:58:22,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:58:22,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:58:23,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-18 20:58:23,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:23,091 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:58:23,153 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-18 20:58:23,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:23,180 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:58:23,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23 WrapperNode [2022-11-18 20:58:23,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:23,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:23,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:58:23,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:58:23,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,321 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 854 [2022-11-18 20:58:23,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:23,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:58:23,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:58:23,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:58:23,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:58:23,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:58:23,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:58:23,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:58:23,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (1/1) ... [2022-11-18 20:58:23,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:23,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:23,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:23,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767533e-3cba-42ab-9359-bc6eb73ea484/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:58:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:58:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:58:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:58:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:58:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:58:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:58:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:58:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:58:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:58:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:58:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:58:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:58:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:58:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:58:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:58:23,555 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:58:23,761 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:58:23,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:58:25,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:58:25,193 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:58:25,193 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:58:25,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:25 BoogieIcfgContainer [2022-11-18 20:58:25,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:58:25,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:58:25,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:58:25,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:58:25,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:58:22" (1/3) ... [2022-11-18 20:58:25,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121310ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:25, skipping insertion in model container [2022-11-18 20:58:25,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:23" (2/3) ... [2022-11-18 20:58:25,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121310ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:25, skipping insertion in model container [2022-11-18 20:58:25,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:25" (3/3) ... [2022-11-18 20:58:25,211 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2022-11-18 20:58:25,226 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:58:25,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:58:25,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2022-11-18 20:58:25,240 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:58:25,555 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:58:25,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1069 places, 1117 transitions, 2258 flow [2022-11-18 20:58:26,634 INFO L130 PetriNetUnfolder]: 58/1114 cut-off events. [2022-11-18 20:58:26,635 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:58:26,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 1114 events. 58/1114 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3925 event pairs, 0 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-18 20:58:26,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 1069 places, 1117 transitions, 2258 flow [2022-11-18 20:58:26,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1088 transitions, 2194 flow [2022-11-18 20:58:26,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:58:26,846 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;@30661515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:58:26,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 286 error locations. [2022-11-18 20:58:26,854 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-18 20:58:26,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:26,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:26,855 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] [2022-11-18 20:58:26,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash 907946587, now seen corresponding path program 1 times [2022-11-18 20:58:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:26,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690483968] [2022-11-18 20:58:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:26,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:27,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:27,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690483968] [2022-11-18 20:58:27,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690483968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:27,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:27,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:27,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336454436] [2022-11-18 20:58:27,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:27,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:27,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:27,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:27,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-18 20:58:27,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1088 transitions, 2194 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:27,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:27,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-18 20:58:27,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:37,149 INFO L130 PetriNetUnfolder]: 1512/16551 cut-off events. [2022-11-18 20:58:37,149 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2022-11-18 20:58:37,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18514 conditions, 16551 events. 1512/16551 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 180843 event pairs, 735 based on Foata normal form. 1151/14023 useless extension candidates. Maximal degree in co-relation 17868. Up to 1375 conditions per place. [2022-11-18 20:58:37,946 INFO L137 encePairwiseOnDemand]: 1096/1117 looper letters, 39 selfloop transitions, 2 changer transitions 2/1069 dead transitions. [2022-11-18 20:58:37,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1069 transitions, 2238 flow [2022-11-18 20:58:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3225 transitions. [2022-11-18 20:58:37,976 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9623992837958818 [2022-11-18 20:58:37,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3225 transitions. [2022-11-18 20:58:37,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3225 transitions. [2022-11-18 20:58:37,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:37,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3225 transitions. [2022-11-18 20:58:38,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1075.0) internal successors, (3225), 3 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:38,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:38,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:38,023 INFO L175 Difference]: Start difference. First operand has 1043 places, 1088 transitions, 2194 flow. Second operand 3 states and 3225 transitions. [2022-11-18 20:58:38,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1069 transitions, 2238 flow [2022-11-18 20:58:38,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1069 transitions, 2226 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:58:38,063 INFO L231 Difference]: Finished difference. Result has 1038 places, 1067 transitions, 2144 flow [2022-11-18 20:58:38,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2144, PETRI_PLACES=1038, PETRI_TRANSITIONS=1067} [2022-11-18 20:58:38,071 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -5 predicate places. [2022-11-18 20:58:38,072 INFO L495 AbstractCegarLoop]: Abstraction has has 1038 places, 1067 transitions, 2144 flow [2022-11-18 20:58:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:38,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:38,076 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] [2022-11-18 20:58:38,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:58:38,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1029953944, now seen corresponding path program 1 times [2022-11-18 20:58:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:38,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055888365] [2022-11-18 20:58:38,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:38,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:38,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055888365] [2022-11-18 20:58:38,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055888365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:38,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:38,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:38,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312966563] [2022-11-18 20:58:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:38,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:38,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:38,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:38,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:38,180 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-18 20:58:38,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1067 transitions, 2144 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:38,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:38,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-18 20:58:38,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:43,619 INFO L130 PetriNetUnfolder]: 693/8505 cut-off events. [2022-11-18 20:58:43,619 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-18 20:58:43,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9209 conditions, 8505 events. 693/8505 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 76910 event pairs, 285 based on Foata normal form. 0/6606 useless extension candidates. Maximal degree in co-relation 9165. Up to 665 conditions per place. [2022-11-18 20:58:44,165 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1066 dead transitions. [2022-11-18 20:58:44,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1037 places, 1066 transitions, 2224 flow [2022-11-18 20:58:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-18 20:58:44,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-18 20:58:44,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-18 20:58:44,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-18 20:58:44,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:44,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-18 20:58:44,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:44,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:44,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:44,197 INFO L175 Difference]: Start difference. First operand has 1038 places, 1067 transitions, 2144 flow. Second operand 3 states and 3207 transitions. [2022-11-18 20:58:44,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1037 places, 1066 transitions, 2224 flow [2022-11-18 20:58:44,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1035 places, 1066 transitions, 2220 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:44,220 INFO L231 Difference]: Finished difference. Result has 1035 places, 1066 transitions, 2142 flow [2022-11-18 20:58:44,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2138, PETRI_DIFFERENCE_MINUEND_PLACES=1033, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2142, PETRI_PLACES=1035, PETRI_TRANSITIONS=1066} [2022-11-18 20:58:44,223 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -8 predicate places. [2022-11-18 20:58:44,223 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 1066 transitions, 2142 flow [2022-11-18 20:58:44,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:44,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:44,227 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] [2022-11-18 20:58:44,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:58:44,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 3819550, now seen corresponding path program 1 times [2022-11-18 20:58:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:44,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898473473] [2022-11-18 20:58:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:44,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:44,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898473473] [2022-11-18 20:58:44,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898473473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:44,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:44,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:44,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161397753] [2022-11-18 20:58:44,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:44,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:44,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:44,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:44,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-18 20:58:44,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 1066 transitions, 2142 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:44,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:44,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-18 20:58:44,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:51,396 INFO L130 PetriNetUnfolder]: 1489/15199 cut-off events. [2022-11-18 20:58:51,397 INFO L131 PetriNetUnfolder]: For 288/350 co-relation queries the response was YES. [2022-11-18 20:58:51,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16637 conditions, 15199 events. 1489/15199 cut-off events. For 288/350 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 163546 event pairs, 735 based on Foata normal form. 0/11776 useless extension candidates. Maximal degree in co-relation 16586. Up to 1414 conditions per place. [2022-11-18 20:58:52,294 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1065 dead transitions. [2022-11-18 20:58:52,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1036 places, 1065 transitions, 2222 flow [2022-11-18 20:58:52,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-18 20:58:52,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-18 20:58:52,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-18 20:58:52,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-18 20:58:52,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:52,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-18 20:58:52,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:52,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:52,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:52,338 INFO L175 Difference]: Start difference. First operand has 1035 places, 1066 transitions, 2142 flow. Second operand 3 states and 3207 transitions. [2022-11-18 20:58:52,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1036 places, 1065 transitions, 2222 flow [2022-11-18 20:58:52,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1034 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:52,366 INFO L231 Difference]: Finished difference. Result has 1034 places, 1065 transitions, 2140 flow [2022-11-18 20:58:52,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1032, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2140, PETRI_PLACES=1034, PETRI_TRANSITIONS=1065} [2022-11-18 20:58:52,371 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -9 predicate places. [2022-11-18 20:58:52,371 INFO L495 AbstractCegarLoop]: Abstraction has has 1034 places, 1065 transitions, 2140 flow [2022-11-18 20:58:52,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:52,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:52,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:52,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:58:52,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:52,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:52,377 INFO L85 PathProgramCache]: Analyzing trace with hash -89838893, now seen corresponding path program 1 times [2022-11-18 20:58:52,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:52,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957837820] [2022-11-18 20:58:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:52,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:52,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957837820] [2022-11-18 20:58:52,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957837820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:52,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:52,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:52,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806593175] [2022-11-18 20:58:52,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:52,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:52,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:52,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1058 out of 1117 [2022-11-18 20:58:52,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1034 places, 1065 transitions, 2140 flow. Second operand has 3 states, 3 states have (on average 1059.3333333333333) internal successors, (3178), 3 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:52,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:52,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1058 of 1117 [2022-11-18 20:58:52,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:53,796 INFO L130 PetriNetUnfolder]: 157/2714 cut-off events. [2022-11-18 20:58:53,796 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:58:53,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2906 conditions, 2714 events. 157/2714 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 18413 event pairs, 48 based on Foata normal form. 0/2162 useless extension candidates. Maximal degree in co-relation 2848. Up to 135 conditions per place. [2022-11-18 20:58:53,921 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 36 selfloop transitions, 2 changer transitions 0/1064 dead transitions. [2022-11-18 20:58:53,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1035 places, 1064 transitions, 2214 flow [2022-11-18 20:58:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-18 20:58:53,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9588182632050134 [2022-11-18 20:58:53,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-18 20:58:53,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-18 20:58:53,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:53,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-18 20:58:53,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:53,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:53,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:53,955 INFO L175 Difference]: Start difference. First operand has 1034 places, 1065 transitions, 2140 flow. Second operand 3 states and 3213 transitions. [2022-11-18 20:58:53,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1035 places, 1064 transitions, 2214 flow [2022-11-18 20:58:53,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1064 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:53,981 INFO L231 Difference]: Finished difference. Result has 1033 places, 1064 transitions, 2138 flow [2022-11-18 20:58:53,989 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2134, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2138, PETRI_PLACES=1033, PETRI_TRANSITIONS=1064} [2022-11-18 20:58:53,991 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -10 predicate places. [2022-11-18 20:58:53,992 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1064 transitions, 2138 flow [2022-11-18 20:58:54,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1059.3333333333333) internal successors, (3178), 3 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:54,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:54,017 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] [2022-11-18 20:58:54,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:58:54,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash -832036848, now seen corresponding path program 1 times [2022-11-18 20:58:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:54,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739143972] [2022-11-18 20:58:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:54,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:54,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:54,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739143972] [2022-11-18 20:58:54,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739143972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:54,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:54,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:54,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467922206] [2022-11-18 20:58:54,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:54,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:54,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:54,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:54,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-18 20:58:54,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:54,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:54,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-18 20:58:54,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:54,980 INFO L130 PetriNetUnfolder]: 97/1633 cut-off events. [2022-11-18 20:58:54,980 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:58:55,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1633 events. 97/1633 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8623 event pairs, 36 based on Foata normal form. 0/1312 useless extension candidates. Maximal degree in co-relation 1713. Up to 100 conditions per place. [2022-11-18 20:58:55,043 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1063 dead transitions. [2022-11-18 20:58:55,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1034 places, 1063 transitions, 2194 flow [2022-11-18 20:58:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:55,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:55,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-18 20:58:55,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-18 20:58:55,054 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-18 20:58:55,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-18 20:58:55,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:55,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-18 20:58:55,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:55,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:55,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:55,072 INFO L175 Difference]: Start difference. First operand has 1033 places, 1064 transitions, 2138 flow. Second operand 3 states and 3231 transitions. [2022-11-18 20:58:55,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1034 places, 1063 transitions, 2194 flow [2022-11-18 20:58:55,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1032 places, 1063 transitions, 2190 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:55,091 INFO L231 Difference]: Finished difference. Result has 1032 places, 1063 transitions, 2136 flow [2022-11-18 20:58:55,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2132, PETRI_DIFFERENCE_MINUEND_PLACES=1030, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1032, PETRI_TRANSITIONS=1063} [2022-11-18 20:58:55,094 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -11 predicate places. [2022-11-18 20:58:55,094 INFO L495 AbstractCegarLoop]: Abstraction has has 1032 places, 1063 transitions, 2136 flow [2022-11-18 20:58:55,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:55,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:55,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:55,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:58:55,096 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:55,097 INFO L85 PathProgramCache]: Analyzing trace with hash 478759090, now seen corresponding path program 1 times [2022-11-18 20:58:55,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:55,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152520036] [2022-11-18 20:58:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:55,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:55,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:55,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152520036] [2022-11-18 20:58:55,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152520036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:55,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:55,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:55,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202707169] [2022-11-18 20:58:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:55,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:55,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:55,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:55,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-18 20:58:55,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:55,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:55,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-18 20:58:55,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:56,053 INFO L130 PetriNetUnfolder]: 112/2081 cut-off events. [2022-11-18 20:58:56,053 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-18 20:58:56,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2208 conditions, 2081 events. 112/2081 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11126 event pairs, 30 based on Foata normal form. 0/1667 useless extension candidates. Maximal degree in co-relation 2136. Up to 88 conditions per place. [2022-11-18 20:58:56,131 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-18 20:58:56,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1033 places, 1062 transitions, 2186 flow [2022-11-18 20:58:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:56,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:56,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-18 20:58:56,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-18 20:58:56,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-18 20:58:56,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-18 20:58:56,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:56,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-18 20:58:56,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:56,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:56,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:56,157 INFO L175 Difference]: Start difference. First operand has 1032 places, 1063 transitions, 2136 flow. Second operand 3 states and 3237 transitions. [2022-11-18 20:58:56,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1033 places, 1062 transitions, 2186 flow [2022-11-18 20:58:56,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1031 places, 1062 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:56,176 INFO L231 Difference]: Finished difference. Result has 1031 places, 1062 transitions, 2134 flow [2022-11-18 20:58:56,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1029, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1031, PETRI_TRANSITIONS=1062} [2022-11-18 20:58:56,181 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -12 predicate places. [2022-11-18 20:58:56,182 INFO L495 AbstractCegarLoop]: Abstraction has has 1031 places, 1062 transitions, 2134 flow [2022-11-18 20:58:56,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:56,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:56,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:56,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:58:56,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:56,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash -178436100, now seen corresponding path program 1 times [2022-11-18 20:58:56,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:56,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922524421] [2022-11-18 20:58:56,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:56,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:56,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:56,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922524421] [2022-11-18 20:58:56,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922524421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:56,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:56,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602603353] [2022-11-18 20:58:56,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:56,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:56,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:56,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:56,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:56,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-18 20:58:56,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:56,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:56,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-18 20:58:56,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:57,279 INFO L130 PetriNetUnfolder]: 157/2207 cut-off events. [2022-11-18 20:58:57,280 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:58:57,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 2207 events. 157/2207 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 14050 event pairs, 72 based on Foata normal form. 0/1774 useless extension candidates. Maximal degree in co-relation 2399. Up to 190 conditions per place. [2022-11-18 20:58:57,346 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-18 20:58:57,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1061 transitions, 2226 flow [2022-11-18 20:58:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-18 20:58:57,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-18 20:58:57,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-18 20:58:57,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-18 20:58:57,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:57,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-18 20:58:57,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:57,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:57,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:57,372 INFO L175 Difference]: Start difference. First operand has 1031 places, 1062 transitions, 2134 flow. Second operand 3 states and 3195 transitions. [2022-11-18 20:58:57,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1061 transitions, 2226 flow [2022-11-18 20:58:57,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1061 transitions, 2222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:57,392 INFO L231 Difference]: Finished difference. Result has 1030 places, 1061 transitions, 2132 flow [2022-11-18 20:58:57,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1030, PETRI_TRANSITIONS=1061} [2022-11-18 20:58:57,394 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -13 predicate places. [2022-11-18 20:58:57,395 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1061 transitions, 2132 flow [2022-11-18 20:58:57,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:57,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:57,396 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] [2022-11-18 20:58:57,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:58:57,397 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash -958623066, now seen corresponding path program 1 times [2022-11-18 20:58:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:57,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427689599] [2022-11-18 20:58:57,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427689599] [2022-11-18 20:58:57,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427689599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:57,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:57,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:57,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111679528] [2022-11-18 20:58:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:57,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:57,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:57,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:57,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:57,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-18 20:58:57,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:57,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:57,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-18 20:58:57,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:58,545 INFO L130 PetriNetUnfolder]: 133/2178 cut-off events. [2022-11-18 20:58:58,546 INFO L131 PetriNetUnfolder]: For 27/74 co-relation queries the response was YES. [2022-11-18 20:58:58,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2349 conditions, 2178 events. 133/2178 cut-off events. For 27/74 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14506 event pairs, 48 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 2263. Up to 138 conditions per place. [2022-11-18 20:58:58,692 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 39 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-18 20:58:58,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1060 transitions, 2212 flow [2022-11-18 20:58:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-18 20:58:58,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9570277529095792 [2022-11-18 20:58:58,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-18 20:58:58,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-18 20:58:58,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:58,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-18 20:58:58,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:58,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:58,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:58,723 INFO L175 Difference]: Start difference. First operand has 1030 places, 1061 transitions, 2132 flow. Second operand 3 states and 3207 transitions. [2022-11-18 20:58:58,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1060 transitions, 2212 flow [2022-11-18 20:58:58,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1060 transitions, 2208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:58,749 INFO L231 Difference]: Finished difference. Result has 1029 places, 1060 transitions, 2130 flow [2022-11-18 20:58:58,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1029, PETRI_TRANSITIONS=1060} [2022-11-18 20:58:58,752 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -14 predicate places. [2022-11-18 20:58:58,752 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1060 transitions, 2130 flow [2022-11-18 20:58:58,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:58,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:58,755 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] [2022-11-18 20:58:58,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:58:58,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:58:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1792991997, now seen corresponding path program 1 times [2022-11-18 20:58:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:58,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168623357] [2022-11-18 20:58:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:58,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:58,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:58,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168623357] [2022-11-18 20:58:58,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168623357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:58,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:58,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923876927] [2022-11-18 20:58:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:58,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:58,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-18 20:58:58,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:58,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:58,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-18 20:58:58,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:59,840 INFO L130 PetriNetUnfolder]: 97/1629 cut-off events. [2022-11-18 20:58:59,840 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-18 20:58:59,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1756 conditions, 1629 events. 97/1629 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9167 event pairs, 36 based on Foata normal form. 0/1306 useless extension candidates. Maximal degree in co-relation 1663. Up to 100 conditions per place. [2022-11-18 20:58:59,944 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-18 20:58:59,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1059 transitions, 2186 flow [2022-11-18 20:58:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-18 20:58:59,953 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-18 20:58:59,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-18 20:58:59,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-18 20:58:59,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:59,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-18 20:58:59,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:59,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:59,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:59,970 INFO L175 Difference]: Start difference. First operand has 1029 places, 1060 transitions, 2130 flow. Second operand 3 states and 3231 transitions. [2022-11-18 20:58:59,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1059 transitions, 2186 flow [2022-11-18 20:58:59,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:59,996 INFO L231 Difference]: Finished difference. Result has 1028 places, 1059 transitions, 2128 flow [2022-11-18 20:58:59,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1028, PETRI_TRANSITIONS=1059} [2022-11-18 20:58:59,999 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -15 predicate places. [2022-11-18 20:58:59,999 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1059 transitions, 2128 flow [2022-11-18 20:59:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:00,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:00,001 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:00,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:59:00,002 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:00,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash -834673530, now seen corresponding path program 1 times [2022-11-18 20:59:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:00,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554551689] [2022-11-18 20:59:00,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:00,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:00,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554551689] [2022-11-18 20:59:00,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554551689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:00,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:00,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880070022] [2022-11-18 20:59:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:00,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:00,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:00,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:00,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:00,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-18 20:59:00,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:00,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:00,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-18 20:59:00,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:01,254 INFO L130 PetriNetUnfolder]: 100/1811 cut-off events. [2022-11-18 20:59:01,254 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-18 20:59:01,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1811 events. 100/1811 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9696 event pairs, 30 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1823. Up to 88 conditions per place. [2022-11-18 20:59:01,356 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-18 20:59:01,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1058 transitions, 2178 flow [2022-11-18 20:59:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-18 20:59:01,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-18 20:59:01,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-18 20:59:01,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-18 20:59:01,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:01,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-18 20:59:01,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:01,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:01,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:01,388 INFO L175 Difference]: Start difference. First operand has 1028 places, 1059 transitions, 2128 flow. Second operand 3 states and 3237 transitions. [2022-11-18 20:59:01,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1058 transitions, 2178 flow [2022-11-18 20:59:01,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:01,415 INFO L231 Difference]: Finished difference. Result has 1027 places, 1058 transitions, 2126 flow [2022-11-18 20:59:01,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1027, PETRI_TRANSITIONS=1058} [2022-11-18 20:59:01,417 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -16 predicate places. [2022-11-18 20:59:01,418 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1058 transitions, 2126 flow [2022-11-18 20:59:01,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:01,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:01,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:01,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:59:01,420 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1745409175, now seen corresponding path program 1 times [2022-11-18 20:59:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:01,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153334228] [2022-11-18 20:59:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:01,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:01,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:01,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153334228] [2022-11-18 20:59:01,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153334228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:01,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:01,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893641306] [2022-11-18 20:59:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:01,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:01,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:01,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:01,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:01,479 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-18 20:59:01,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:01,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:01,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-18 20:59:01,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:02,536 INFO L130 PetriNetUnfolder]: 145/1937 cut-off events. [2022-11-18 20:59:02,537 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-18 20:59:02,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 1937 events. 145/1937 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13149 event pairs, 72 based on Foata normal form. 0/1550 useless extension candidates. Maximal degree in co-relation 2065. Up to 190 conditions per place. [2022-11-18 20:59:02,640 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-18 20:59:02,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1057 transitions, 2218 flow [2022-11-18 20:59:02,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-18 20:59:02,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-18 20:59:02,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-18 20:59:02,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-18 20:59:02,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:02,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-18 20:59:02,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:02,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:02,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:02,656 INFO L175 Difference]: Start difference. First operand has 1027 places, 1058 transitions, 2126 flow. Second operand 3 states and 3195 transitions. [2022-11-18 20:59:02,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1057 transitions, 2218 flow [2022-11-18 20:59:02,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:02,677 INFO L231 Difference]: Finished difference. Result has 1026 places, 1057 transitions, 2124 flow [2022-11-18 20:59:02,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1026, PETRI_TRANSITIONS=1057} [2022-11-18 20:59:02,679 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -17 predicate places. [2022-11-18 20:59:02,680 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1057 transitions, 2124 flow [2022-11-18 20:59:02,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:02,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:02,681 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] [2022-11-18 20:59:02,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:59:02,682 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash 427587733, now seen corresponding path program 1 times [2022-11-18 20:59:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:02,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867144416] [2022-11-18 20:59:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:02,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:02,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:02,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867144416] [2022-11-18 20:59:02,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867144416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:02,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:02,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:02,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314462179] [2022-11-18 20:59:02,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:02,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:02,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:02,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:02,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:02,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 1117 [2022-11-18 20:59:02,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:02,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:02,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 1117 [2022-11-18 20:59:02,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:03,649 INFO L130 PetriNetUnfolder]: 109/1602 cut-off events. [2022-11-18 20:59:03,649 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-18 20:59:03,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1602 events. 109/1602 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9530 event pairs, 48 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 1634. Up to 137 conditions per place. [2022-11-18 20:59:03,714 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 38 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-18 20:59:03,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1056 transitions, 2202 flow [2022-11-18 20:59:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3206 transitions. [2022-11-18 20:59:03,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567293345270068 [2022-11-18 20:59:03,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3206 transitions. [2022-11-18 20:59:03,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3206 transitions. [2022-11-18 20:59:03,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:03,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3206 transitions. [2022-11-18 20:59:03,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1068.6666666666667) internal successors, (3206), 3 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:03,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:03,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:03,736 INFO L175 Difference]: Start difference. First operand has 1026 places, 1057 transitions, 2124 flow. Second operand 3 states and 3206 transitions. [2022-11-18 20:59:03,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1056 transitions, 2202 flow [2022-11-18 20:59:03,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1056 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:03,753 INFO L231 Difference]: Finished difference. Result has 1025 places, 1056 transitions, 2122 flow [2022-11-18 20:59:03,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1025, PETRI_TRANSITIONS=1056} [2022-11-18 20:59:03,756 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -18 predicate places. [2022-11-18 20:59:03,756 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1056 transitions, 2122 flow [2022-11-18 20:59:03,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1056.3333333333333) internal successors, (3169), 3 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:03,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:03,758 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] [2022-11-18 20:59:03,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:59:03,758 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1753625885, now seen corresponding path program 1 times [2022-11-18 20:59:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669650794] [2022-11-18 20:59:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:03,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:03,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669650794] [2022-11-18 20:59:03,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669650794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:03,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:03,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686789819] [2022-11-18 20:59:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:03,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:03,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1117 [2022-11-18 20:59:03,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:03,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:03,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1117 [2022-11-18 20:59:03,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:04,712 INFO L130 PetriNetUnfolder]: 97/1625 cut-off events. [2022-11-18 20:59:04,712 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-18 20:59:04,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1625 events. 97/1625 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9520 event pairs, 36 based on Foata normal form. 0/1306 useless extension candidates. Maximal degree in co-relation 1613. Up to 100 conditions per place. [2022-11-18 20:59:04,833 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-18 20:59:04,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1055 transitions, 2178 flow [2022-11-18 20:59:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-18 20:59:04,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964189794091316 [2022-11-18 20:59:04,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-18 20:59:04,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-18 20:59:04,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:04,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-18 20:59:04,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:04,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:04,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:04,853 INFO L175 Difference]: Start difference. First operand has 1025 places, 1056 transitions, 2122 flow. Second operand 3 states and 3231 transitions. [2022-11-18 20:59:04,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1055 transitions, 2178 flow [2022-11-18 20:59:04,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:04,879 INFO L231 Difference]: Finished difference. Result has 1024 places, 1055 transitions, 2120 flow [2022-11-18 20:59:04,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1024, PETRI_TRANSITIONS=1055} [2022-11-18 20:59:04,882 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -19 predicate places. [2022-11-18 20:59:04,883 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1055 transitions, 2120 flow [2022-11-18 20:59:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1068.3333333333333) internal successors, (3205), 3 states have internal predecessors, (3205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:04,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:04,884 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] [2022-11-18 20:59:04,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:59:04,885 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:04,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:04,885 INFO L85 PathProgramCache]: Analyzing trace with hash -912326868, now seen corresponding path program 1 times [2022-11-18 20:59:04,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:04,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613632048] [2022-11-18 20:59:04,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:04,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:04,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613632048] [2022-11-18 20:59:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613632048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:04,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738458340] [2022-11-18 20:59:04,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:04,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:04,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:04,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1117 [2022-11-18 20:59:04,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:04,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:04,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1117 [2022-11-18 20:59:04,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:05,997 INFO L130 PetriNetUnfolder]: 88/1537 cut-off events. [2022-11-18 20:59:05,997 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-18 20:59:06,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 1537 events. 88/1537 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7744 event pairs, 30 based on Foata normal form. 0/1248 useless extension candidates. Maximal degree in co-relation 1506. Up to 88 conditions per place. [2022-11-18 20:59:06,054 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-18 20:59:06,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1054 transitions, 2170 flow [2022-11-18 20:59:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3237 transitions. [2022-11-18 20:59:06,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9659803043867502 [2022-11-18 20:59:06,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3237 transitions. [2022-11-18 20:59:06,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3237 transitions. [2022-11-18 20:59:06,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:06,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3237 transitions. [2022-11-18 20:59:06,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.0) internal successors, (3237), 3 states have internal predecessors, (3237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:06,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:06,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:06,075 INFO L175 Difference]: Start difference. First operand has 1024 places, 1055 transitions, 2120 flow. Second operand 3 states and 3237 transitions. [2022-11-18 20:59:06,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1054 transitions, 2170 flow [2022-11-18 20:59:06,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:06,095 INFO L231 Difference]: Finished difference. Result has 1023 places, 1054 transitions, 2118 flow [2022-11-18 20:59:06,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1023, PETRI_TRANSITIONS=1054} [2022-11-18 20:59:06,098 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -20 predicate places. [2022-11-18 20:59:06,098 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1054 transitions, 2118 flow [2022-11-18 20:59:06,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:06,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:06,100 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] [2022-11-18 20:59:06,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:59:06,100 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:06,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:06,101 INFO L85 PathProgramCache]: Analyzing trace with hash 920509847, now seen corresponding path program 1 times [2022-11-18 20:59:06,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:06,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351946064] [2022-11-18 20:59:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:06,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351946064] [2022-11-18 20:59:06,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351946064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:06,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:06,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168481518] [2022-11-18 20:59:06,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:06,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:06,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:06,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1117 [2022-11-18 20:59:06,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:06,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:06,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1117 [2022-11-18 20:59:06,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:07,521 INFO L130 PetriNetUnfolder]: 133/1647 cut-off events. [2022-11-18 20:59:07,522 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-18 20:59:07,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 1647 events. 133/1647 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11092 event pairs, 72 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 1711. Up to 190 conditions per place. [2022-11-18 20:59:07,636 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-18 20:59:07,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1053 transitions, 2210 flow [2022-11-18 20:59:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:07,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-18 20:59:07,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9534467323187108 [2022-11-18 20:59:07,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-18 20:59:07,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-18 20:59:07,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:07,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-18 20:59:07,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:07,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:07,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:07,660 INFO L175 Difference]: Start difference. First operand has 1023 places, 1054 transitions, 2118 flow. Second operand 3 states and 3195 transitions. [2022-11-18 20:59:07,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1053 transitions, 2210 flow [2022-11-18 20:59:07,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:07,685 INFO L231 Difference]: Finished difference. Result has 1022 places, 1053 transitions, 2116 flow [2022-11-18 20:59:07,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1022, PETRI_TRANSITIONS=1053} [2022-11-18 20:59:07,687 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -21 predicate places. [2022-11-18 20:59:07,687 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1053 transitions, 2116 flow [2022-11-18 20:59:07,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:07,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:07,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:07,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:59:07,689 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:07,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1237557967, now seen corresponding path program 1 times [2022-11-18 20:59:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:07,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219736599] [2022-11-18 20:59:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:07,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:07,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:07,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219736599] [2022-11-18 20:59:07,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219736599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:07,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:07,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:07,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694899556] [2022-11-18 20:59:07,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:07,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:07,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:07,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:07,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:07,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1117 [2022-11-18 20:59:07,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:07,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:07,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1117 [2022-11-18 20:59:07,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:12,196 INFO L130 PetriNetUnfolder]: 578/9166 cut-off events. [2022-11-18 20:59:12,196 INFO L131 PetriNetUnfolder]: For 42/65 co-relation queries the response was YES. [2022-11-18 20:59:12,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9516 conditions, 9166 events. 578/9166 cut-off events. For 42/65 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 86759 event pairs, 135 based on Foata normal form. 0/7178 useless extension candidates. Maximal degree in co-relation 9374. Up to 323 conditions per place. [2022-11-18 20:59:12,679 INFO L137 encePairwiseOnDemand]: 1114/1117 looper letters, 18 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-18 20:59:12,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1052 transitions, 2154 flow [2022-11-18 20:59:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3249 transitions. [2022-11-18 20:59:12,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9695613249776186 [2022-11-18 20:59:12,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3249 transitions. [2022-11-18 20:59:12,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3249 transitions. [2022-11-18 20:59:12,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:12,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3249 transitions. [2022-11-18 20:59:12,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.0) internal successors, (3249), 3 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:12,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:12,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1117.0) internal successors, (4468), 4 states have internal predecessors, (4468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:12,705 INFO L175 Difference]: Start difference. First operand has 1022 places, 1053 transitions, 2116 flow. Second operand 3 states and 3249 transitions. [2022-11-18 20:59:12,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1052 transitions, 2154 flow [2022-11-18 20:59:12,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1052 transitions, 2150 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:12,728 INFO L231 Difference]: Finished difference. Result has 1021 places, 1052 transitions, 2114 flow [2022-11-18 20:59:12,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1117, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1021, PETRI_TRANSITIONS=1052} [2022-11-18 20:59:12,731 INFO L288 CegarLoopForPetriNet]: 1043 programPoint places, -22 predicate places. [2022-11-18 20:59:12,731 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1052 transitions, 2114 flow [2022-11-18 20:59:12,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:12,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:12,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:12,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:59:12,733 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2022-11-18 20:59:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash -116098818, now seen corresponding path program 1 times [2022-11-18 20:59:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:12,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536348734] [2022-11-18 20:59:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:12,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:59:13,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:13,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536348734] [2022-11-18 20:59:13,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536348734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:13,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:13,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:13,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894142559] [2022-11-18 20:59:13,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:13,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:13,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:13,697 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1038 out of 1117 [2022-11-18 20:59:13,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1052 transitions, 2114 flow. Second operand has 6 states, 6 states have (on average 1039.8333333333333) internal successors, (6239), 6 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:59:13,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:13,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1038 of 1117 [2022-11-18 20:59:13,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand