./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc --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 c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 --- 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-5e519f3 [2022-11-02 20:23:08,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:23:08,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:23:08,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:23:08,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:23:08,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:23:08,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:23:08,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:23:08,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:23:08,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:23:08,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:23:08,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:23:08,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:23:08,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:23:08,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:23:08,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:23:08,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:23:08,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:23:08,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:23:08,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:23:08,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:23:08,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:23:08,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:23:08,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:23:08,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:23:08,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:23:08,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:23:08,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:23:08,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:23:08,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:23:08,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:23:08,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:23:08,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:23:08,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:23:08,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:23:08,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:23:08,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:23:08,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:23:08,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:23:08,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:23:08,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:23:08,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:23:08,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:23:08,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:23:08,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:23:08,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:23:08,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:23:08,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:23:08,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:23:08,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:23:08,288 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:23:08,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:23:08,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:23:08,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:23:08,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:23:08,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:23:08,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:23:08,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:23:08,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:23:08,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:23:08,291 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:23:08,291 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:23:08,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:23:08,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:23:08,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:23:08,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:23:08,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:23:08,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:23:08,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:08,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:23:08,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:23:08,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:23:08,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:23:08,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:23:08,295 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:23:08,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:23:08,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:23:08,296 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_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 [2022-11-02 20:23:08,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:23:08,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:23:08,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:23:08,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:23:08,675 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:23:08,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-02 20:23:08,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/data/798d7bf4c/de04905e2a2d4a6a88a5d17206247ec9/FLAGd7b6cbfc8 [2022-11-02 20:23:09,575 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:23:09,576 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-02 20:23:09,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/data/798d7bf4c/de04905e2a2d4a6a88a5d17206247ec9/FLAGd7b6cbfc8 [2022-11-02 20:23:09,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/data/798d7bf4c/de04905e2a2d4a6a88a5d17206247ec9 [2022-11-02 20:23:09,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:23:09,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:23:09,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:09,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:23:09,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:23:09,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:09" (1/1) ... [2022-11-02 20:23:09,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3804e76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:09, skipping insertion in model container [2022-11-02 20:23:09,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:09" (1/1) ... [2022-11-02 20:23:09,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:23:09,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:23:10,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:10,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:23:10,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:10,771 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:23:10,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10 WrapperNode [2022-11-02 20:23:10,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:10,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:10,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:23:10,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:23:10,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,866 INFO L138 Inliner]: procedures = 371, calls = 35, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 233 [2022-11-02 20:23:10,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:10,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:23:10,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:23:10,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:23:10,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,967 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:10,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:23:10,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:23:10,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:23:10,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:23:10,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (1/1) ... [2022-11-02 20:23:11,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:11,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:11,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:23:11,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:23:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:23:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:23:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:23:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:23:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:23:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:23:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:23:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:23:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:23:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:23:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:23:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:23:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:23:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:23:11,160 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:23:11,405 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:23:11,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:23:12,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:23:12,279 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:23:12,279 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:23:12,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:12 BoogieIcfgContainer [2022-11-02 20:23:12,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:23:12,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:23:12,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:23:12,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:23:12,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:23:09" (1/3) ... [2022-11-02 20:23:12,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcae866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:12, skipping insertion in model container [2022-11-02 20:23:12,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:10" (2/3) ... [2022-11-02 20:23:12,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcae866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:12, skipping insertion in model container [2022-11-02 20:23:12,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:12" (3/3) ... [2022-11-02 20:23:12,305 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-11-02 20:23:12,316 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:23:12,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:23:12,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 20:23:12,329 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:23:12,496 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:23:12,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 280 transitions, 565 flow [2022-11-02 20:23:12,732 INFO L130 PetriNetUnfolder]: 4/279 cut-off events. [2022-11-02 20:23:12,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:12,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 279 events. 4/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-02 20:23:12,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 280 transitions, 565 flow [2022-11-02 20:23:12,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 279 transitions, 561 flow [2022-11-02 20:23:12,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:23:12,769 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;@21ca0c9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:23:12,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 20:23:12,800 INFO L130 PetriNetUnfolder]: 3/54 cut-off events. [2022-11-02 20:23:12,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:23:12,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:12,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:12,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:12,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1014316282, now seen corresponding path program 1 times [2022-11-02 20:23:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295296061] [2022-11-02 20:23:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:13,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:13,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295296061] [2022-11-02 20:23:13,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295296061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:13,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:13,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:23:13,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830532042] [2022-11-02 20:23:13,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:13,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:13,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:13,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:13,447 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 280 [2022-11-02 20:23:13,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 561 flow. Second operand has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:13,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:13,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 280 [2022-11-02 20:23:13,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:13,631 INFO L130 PetriNetUnfolder]: 1/280 cut-off events. [2022-11-02 20:23:13,631 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:13,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 280 events. 1/280 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 166. Up to 9 conditions per place. [2022-11-02 20:23:13,636 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 10 selfloop transitions, 2 changer transitions 1/280 dead transitions. [2022-11-02 20:23:13,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 280 transitions, 587 flow [2022-11-02 20:23:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:23:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-02 20:23:13,691 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9809523809523809 [2022-11-02 20:23:13,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-02 20:23:13,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-02 20:23:13,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:13,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-02 20:23:13,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:13,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:13,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:13,726 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 561 flow. Second operand 3 states and 824 transitions. [2022-11-02 20:23:13,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 280 transitions, 587 flow [2022-11-02 20:23:13,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 280 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:13,743 INFO L231 Difference]: Finished difference. Result has 281 places, 276 transitions, 564 flow [2022-11-02 20:23:13,746 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=281, PETRI_TRANSITIONS=276} [2022-11-02 20:23:13,751 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 2 predicate places. [2022-11-02 20:23:13,751 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 276 transitions, 564 flow [2022-11-02 20:23:13,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:13,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:13,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:13,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:23:13,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:13,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1446396541, now seen corresponding path program 1 times [2022-11-02 20:23:13,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:13,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823199744] [2022-11-02 20:23:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:13,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:13,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823199744] [2022-11-02 20:23:13,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823199744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:13,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927860728] [2022-11-02 20:23:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:13,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:13,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:13,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:13,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:23:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:14,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:23:14,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:14,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:14,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927860728] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:14,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:14,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 20:23:14,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790785477] [2022-11-02 20:23:14,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:14,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:23:14,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:23:14,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:23:14,336 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-02 20:23:14,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 276 transitions, 564 flow. Second operand has 10 states, 10 states have (on average 270.0) internal successors, (2700), 10 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:14,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:14,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-02 20:23:14,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:14,531 INFO L130 PetriNetUnfolder]: 1/286 cut-off events. [2022-11-02 20:23:14,531 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:14,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 286 events. 1/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 2/269 useless extension candidates. Maximal degree in co-relation 281. Up to 6 conditions per place. [2022-11-02 20:23:14,533 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 11 selfloop transitions, 9 changer transitions 0/286 dead transitions. [2022-11-02 20:23:14,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 286 transitions, 626 flow [2022-11-02 20:23:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:23:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:23:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2434 transitions. [2022-11-02 20:23:14,540 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9658730158730159 [2022-11-02 20:23:14,540 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2434 transitions. [2022-11-02 20:23:14,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2434 transitions. [2022-11-02 20:23:14,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:14,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2434 transitions. [2022-11-02 20:23:14,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 270.44444444444446) internal successors, (2434), 9 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:14,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 280.0) internal successors, (2800), 10 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:14,583 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 280.0) internal successors, (2800), 10 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:14,583 INFO L175 Difference]: Start difference. First operand has 281 places, 276 transitions, 564 flow. Second operand 9 states and 2434 transitions. [2022-11-02 20:23:14,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 286 transitions, 626 flow [2022-11-02 20:23:14,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 286 transitions, 624 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:14,594 INFO L231 Difference]: Finished difference. Result has 290 places, 282 transitions, 612 flow [2022-11-02 20:23:14,595 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=612, PETRI_PLACES=290, PETRI_TRANSITIONS=282} [2022-11-02 20:23:14,596 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2022-11-02 20:23:14,597 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 282 transitions, 612 flow [2022-11-02 20:23:14,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 270.0) internal successors, (2700), 10 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:14,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:14,600 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:14,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:14,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:14,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:14,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1557834781, now seen corresponding path program 2 times [2022-11-02 20:23:14,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:14,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906224971] [2022-11-02 20:23:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:14,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-02 20:23:15,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:15,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906224971] [2022-11-02 20:23:15,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906224971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:15,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:15,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:15,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661419466] [2022-11-02 20:23:15,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:15,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:15,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:15,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:15,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:15,399 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 280 [2022-11-02 20:23:15,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 282 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:15,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:15,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 280 [2022-11-02 20:23:15,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:16,769 INFO L130 PetriNetUnfolder]: 649/2122 cut-off events. [2022-11-02 20:23:16,770 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:23:16,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 2122 events. 649/2122 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11548 event pairs, 648 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 3508. Up to 1408 conditions per place. [2022-11-02 20:23:16,795 INFO L137 encePairwiseOnDemand]: 268/280 looper letters, 111 selfloop transitions, 10 changer transitions 0/280 dead transitions. [2022-11-02 20:23:16,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 280 transitions, 850 flow [2022-11-02 20:23:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:16,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1047 transitions. [2022-11-02 20:23:16,801 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6232142857142857 [2022-11-02 20:23:16,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1047 transitions. [2022-11-02 20:23:16,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1047 transitions. [2022-11-02 20:23:16,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:16,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1047 transitions. [2022-11-02 20:23:16,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:16,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:16,814 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:16,814 INFO L175 Difference]: Start difference. First operand has 290 places, 282 transitions, 612 flow. Second operand 6 states and 1047 transitions. [2022-11-02 20:23:16,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 280 transitions, 850 flow [2022-11-02 20:23:16,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 280 transitions, 844 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 20:23:16,827 INFO L231 Difference]: Finished difference. Result has 292 places, 280 transitions, 622 flow [2022-11-02 20:23:16,828 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=292, PETRI_TRANSITIONS=280} [2022-11-02 20:23:16,831 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 13 predicate places. [2022-11-02 20:23:16,832 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 280 transitions, 622 flow [2022-11-02 20:23:16,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:16,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:16,835 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:16,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:23:16,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash -47754392, now seen corresponding path program 1 times [2022-11-02 20:23:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:16,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317675809] [2022-11-02 20:23:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:17,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:17,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317675809] [2022-11-02 20:23:17,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317675809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:17,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718779172] [2022-11-02 20:23:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:17,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:17,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:17,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:17,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:23:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:17,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:23:17,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:17,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:17,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718779172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:17,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:17,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 20:23:17,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486858523] [2022-11-02 20:23:17,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:23:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:23:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:23:17,600 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-02 20:23:17,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 280 transitions, 622 flow. Second operand has 18 states, 18 states have (on average 270.22222222222223) internal successors, (4864), 18 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:17,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:17,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-02 20:23:17,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:17,922 INFO L130 PetriNetUnfolder]: 1/304 cut-off events. [2022-11-02 20:23:17,922 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-02 20:23:17,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 304 events. 1/304 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 4/291 useless extension candidates. Maximal degree in co-relation 163. Up to 11 conditions per place. [2022-11-02 20:23:17,924 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 19 selfloop transitions, 21 changer transitions 0/304 dead transitions. [2022-11-02 20:23:17,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 304 transitions, 802 flow [2022-11-02 20:23:17,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 20:23:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 20:23:17,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5672 transitions. [2022-11-02 20:23:17,936 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.964625850340136 [2022-11-02 20:23:17,936 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5672 transitions. [2022-11-02 20:23:17,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5672 transitions. [2022-11-02 20:23:17,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:17,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5672 transitions. [2022-11-02 20:23:17,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 270.0952380952381) internal successors, (5672), 21 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:17,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:17,971 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:17,971 INFO L175 Difference]: Start difference. First operand has 292 places, 280 transitions, 622 flow. Second operand 21 states and 5672 transitions. [2022-11-02 20:23:17,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 304 transitions, 802 flow [2022-11-02 20:23:17,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 304 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:17,981 INFO L231 Difference]: Finished difference. Result has 312 places, 293 transitions, 732 flow [2022-11-02 20:23:17,982 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=732, PETRI_PLACES=312, PETRI_TRANSITIONS=293} [2022-11-02 20:23:17,983 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 33 predicate places. [2022-11-02 20:23:17,983 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 293 transitions, 732 flow [2022-11-02 20:23:17,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 270.22222222222223) internal successors, (4864), 18 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:17,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:17,987 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:18,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:18,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:18,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1805801512, now seen corresponding path program 2 times [2022-11-02 20:23:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:18,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251068167] [2022-11-02 20:23:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:18,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:18,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:18,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251068167] [2022-11-02 20:23:18,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251068167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:18,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769838478] [2022-11-02 20:23:18,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:23:18,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:18,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:18,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:18,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:23:18,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:23:18,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:23:18,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:23:18,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:18,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:23:18,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 20:23:19,039 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:23:19,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-02 20:23:19,089 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:23:19,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-02 20:23:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-02 20:23:19,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:23:19,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769838478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:19,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:23:19,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 20:23:19,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501534211] [2022-11-02 20:23:19,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:19,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:19,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:23:19,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 280 [2022-11-02 20:23:19,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 293 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:19,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:19,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 280 [2022-11-02 20:23:19,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:20,268 INFO L130 PetriNetUnfolder]: 649/2140 cut-off events. [2022-11-02 20:23:20,268 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-02 20:23:20,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 2140 events. 649/2140 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11559 event pairs, 648 based on Foata normal form. 0/1892 useless extension candidates. Maximal degree in co-relation 3508. Up to 1406 conditions per place. [2022-11-02 20:23:20,283 INFO L137 encePairwiseOnDemand]: 268/280 looper letters, 109 selfloop transitions, 10 changer transitions 0/291 dead transitions. [2022-11-02 20:23:20,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 291 transitions, 966 flow [2022-11-02 20:23:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1045 transitions. [2022-11-02 20:23:20,288 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6220238095238095 [2022-11-02 20:23:20,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1045 transitions. [2022-11-02 20:23:20,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1045 transitions. [2022-11-02 20:23:20,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:20,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1045 transitions. [2022-11-02 20:23:20,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:20,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:20,299 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:20,299 INFO L175 Difference]: Start difference. First operand has 312 places, 293 transitions, 732 flow. Second operand 6 states and 1045 transitions. [2022-11-02 20:23:20,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 291 transitions, 966 flow [2022-11-02 20:23:20,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 291 transitions, 942 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 20:23:20,312 INFO L231 Difference]: Finished difference. Result has 309 places, 291 transitions, 724 flow [2022-11-02 20:23:20,312 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=724, PETRI_PLACES=309, PETRI_TRANSITIONS=291} [2022-11-02 20:23:20,313 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 30 predicate places. [2022-11-02 20:23:20,314 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 291 transitions, 724 flow [2022-11-02 20:23:20,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:20,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:20,315 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:20,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:20,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:20,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:20,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1682803570, now seen corresponding path program 1 times [2022-11-02 20:23:20,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:20,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659451689] [2022-11-02 20:23:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:20,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:21,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:21,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659451689] [2022-11-02 20:23:21,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659451689] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:21,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987387394] [2022-11-02 20:23:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:21,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:21,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:23:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:21,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:23:21,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:21,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:21,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987387394] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:21,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:21,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 20:23:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517715579] [2022-11-02 20:23:21,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:21,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 20:23:21,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:21,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 20:23:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 20:23:21,664 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-02 20:23:21,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 291 transitions, 724 flow. Second operand has 23 states, 23 states have (on average 270.39130434782606) internal successors, (6219), 23 states have internal predecessors, (6219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:21,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:21,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-02 20:23:21,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:22,157 INFO L130 PetriNetUnfolder]: 1/317 cut-off events. [2022-11-02 20:23:22,158 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-02 20:23:22,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 317 events. 1/317 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 3/305 useless extension candidates. Maximal degree in co-relation 259. Up to 16 conditions per place. [2022-11-02 20:23:22,166 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 25 selfloop transitions, 30 changer transitions 0/317 dead transitions. [2022-11-02 20:23:22,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 317 transitions, 974 flow [2022-11-02 20:23:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 20:23:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 20:23:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8098 transitions. [2022-11-02 20:23:22,187 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.964047619047619 [2022-11-02 20:23:22,187 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8098 transitions. [2022-11-02 20:23:22,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8098 transitions. [2022-11-02 20:23:22,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:22,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8098 transitions. [2022-11-02 20:23:22,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 269.93333333333334) internal successors, (8098), 30 states have internal predecessors, (8098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:22,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 280.0) internal successors, (8680), 31 states have internal predecessors, (8680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:22,248 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 280.0) internal successors, (8680), 31 states have internal predecessors, (8680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:22,249 INFO L175 Difference]: Start difference. First operand has 309 places, 291 transitions, 724 flow. Second operand 30 states and 8098 transitions. [2022-11-02 20:23:22,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 317 transitions, 974 flow [2022-11-02 20:23:22,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 317 transitions, 954 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:22,262 INFO L231 Difference]: Finished difference. Result has 337 places, 301 transitions, 856 flow [2022-11-02 20:23:22,263 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=856, PETRI_PLACES=337, PETRI_TRANSITIONS=301} [2022-11-02 20:23:22,266 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 58 predicate places. [2022-11-02 20:23:22,266 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 301 transitions, 856 flow [2022-11-02 20:23:22,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 270.39130434782606) internal successors, (6219), 23 states have internal predecessors, (6219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:22,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:22,271 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:22,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:22,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7a968c6-91d2-414d-9345-da51e1a9ff29/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:22,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:22,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1005405797, now seen corresponding path program 2 times [2022-11-02 20:23:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:22,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262857616] [2022-11-02 20:23:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:22,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:23,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:23,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262857616] [2022-11-02 20:23:23,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262857616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:23,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:23,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:23,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088097747] [2022-11-02 20:23:23,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:23,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:23,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:23,251 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 280 [2022-11-02 20:23:23,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 301 transitions, 856 flow. Second operand has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:23,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:23,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 280 [2022-11-02 20:23:23,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:24,429 INFO L130 PetriNetUnfolder]: 778/2472 cut-off events. [2022-11-02 20:23:24,430 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-02 20:23:24,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4307 conditions, 2472 events. 778/2472 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13746 event pairs, 777 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 4084. Up to 1667 conditions per place. [2022-11-02 20:23:24,451 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 112 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2022-11-02 20:23:24,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 300 transitions, 1088 flow [2022-11-02 20:23:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:24,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2022-11-02 20:23:24,456 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2022-11-02 20:23:24,456 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2022-11-02 20:23:24,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2022-11-02 20:23:24,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:24,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2022-11-02 20:23:24,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:24,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:24,465 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:24,465 INFO L175 Difference]: Start difference. First operand has 337 places, 301 transitions, 856 flow. Second operand 6 states and 1048 transitions. [2022-11-02 20:23:24,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 300 transitions, 1088 flow [2022-11-02 20:23:24,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 300 transitions, 1042 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 20:23:24,477 INFO L231 Difference]: Finished difference. Result has 323 places, 300 transitions, 818 flow [2022-11-02 20:23:24,477 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=818, PETRI_PLACES=323, PETRI_TRANSITIONS=300} [2022-11-02 20:23:24,478 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 44 predicate places. [2022-11-02 20:23:24,479 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 300 transitions, 818 flow [2022-11-02 20:23:24,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:24,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:24,480 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:23:24,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -325553121, now seen corresponding path program 1 times [2022-11-02 20:23:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:24,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735990926] [2022-11-02 20:23:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:24,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:25,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:25,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735990926] [2022-11-02 20:23:25,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735990926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:25,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:25,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:25,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791088198] [2022-11-02 20:23:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:25,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:25,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:25,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:25,315 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 280 [2022-11-02 20:23:25,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 300 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:25,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:25,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 280 [2022-11-02 20:23:25,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:27,360 INFO L130 PetriNetUnfolder]: 1388/4190 cut-off events. [2022-11-02 20:23:27,361 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-02 20:23:27,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7280 conditions, 4190 events. 1388/4190 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28944 event pairs, 110 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7078. Up to 1834 conditions per place. [2022-11-02 20:23:27,467 INFO L137 encePairwiseOnDemand]: 252/280 looper letters, 205 selfloop transitions, 74 changer transitions 0/464 dead transitions. [2022-11-02 20:23:27,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 464 transitions, 1704 flow [2022-11-02 20:23:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1223 transitions. [2022-11-02 20:23:27,474 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7279761904761904 [2022-11-02 20:23:27,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1223 transitions. [2022-11-02 20:23:27,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1223 transitions. [2022-11-02 20:23:27,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:27,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1223 transitions. [2022-11-02 20:23:27,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,487 INFO L175 Difference]: Start difference. First operand has 323 places, 300 transitions, 818 flow. Second operand 6 states and 1223 transitions. [2022-11-02 20:23:27,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 464 transitions, 1704 flow [2022-11-02 20:23:27,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 464 transitions, 1694 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:27,503 INFO L231 Difference]: Finished difference. Result has 327 places, 367 transitions, 1280 flow [2022-11-02 20:23:27,504 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=327, PETRI_TRANSITIONS=367} [2022-11-02 20:23:27,508 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 48 predicate places. [2022-11-02 20:23:27,508 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 367 transitions, 1280 flow [2022-11-02 20:23:27,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:27,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:27,510 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:27,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:23:27,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash 934174501, now seen corresponding path program 1 times [2022-11-02 20:23:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:27,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872676199] [2022-11-02 20:23:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:28,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872676199] [2022-11-02 20:23:28,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872676199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:28,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:28,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:28,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212682556] [2022-11-02 20:23:28,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:28,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:28,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:28,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:28,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:28,429 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-02 20:23:28,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 367 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:28,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:28,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-02 20:23:28,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:29,657 INFO L130 PetriNetUnfolder]: 1207/3993 cut-off events. [2022-11-02 20:23:29,658 INFO L131 PetriNetUnfolder]: For 1329/1403 co-relation queries the response was YES. [2022-11-02 20:23:29,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8099 conditions, 3993 events. 1207/3993 cut-off events. For 1329/1403 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27045 event pairs, 792 based on Foata normal form. 0/3592 useless extension candidates. Maximal degree in co-relation 7896. Up to 2566 conditions per place. [2022-11-02 20:23:29,700 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 169 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2022-11-02 20:23:29,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 366 transitions, 1626 flow [2022-11-02 20:23:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-11-02 20:23:29,705 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6494047619047619 [2022-11-02 20:23:29,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-11-02 20:23:29,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-11-02 20:23:29,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:29,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-11-02 20:23:29,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,715 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,715 INFO L175 Difference]: Start difference. First operand has 327 places, 367 transitions, 1280 flow. Second operand 6 states and 1091 transitions. [2022-11-02 20:23:29,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 366 transitions, 1626 flow [2022-11-02 20:23:29,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 366 transitions, 1626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:29,731 INFO L231 Difference]: Finished difference. Result has 331 places, 366 transitions, 1288 flow [2022-11-02 20:23:29,732 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1288, PETRI_PLACES=331, PETRI_TRANSITIONS=366} [2022-11-02 20:23:29,733 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 52 predicate places. [2022-11-02 20:23:29,733 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 366 transitions, 1288 flow [2022-11-02 20:23:29,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:29,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:29,734 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:29,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:23:29,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:29,736 INFO L85 PathProgramCache]: Analyzing trace with hash 450903764, now seen corresponding path program 1 times [2022-11-02 20:23:29,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:29,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772301745] [2022-11-02 20:23:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:30,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:30,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772301745] [2022-11-02 20:23:30,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772301745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:30,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:30,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460338187] [2022-11-02 20:23:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:30,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:30,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:30,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:30,535 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 280 [2022-11-02 20:23:30,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 366 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:30,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:30,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 280 [2022-11-02 20:23:30,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:32,140 INFO L130 PetriNetUnfolder]: 1207/3992 cut-off events. [2022-11-02 20:23:32,140 INFO L131 PetriNetUnfolder]: For 1329/1403 co-relation queries the response was YES. [2022-11-02 20:23:32,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8105 conditions, 3992 events. 1207/3992 cut-off events. For 1329/1403 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 27022 event pairs, 792 based on Foata normal form. 0/3592 useless extension candidates. Maximal degree in co-relation 7901. Up to 2568 conditions per place. [2022-11-02 20:23:32,195 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 170 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2022-11-02 20:23:32,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 365 transitions, 1636 flow [2022-11-02 20:23:32,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:32,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1080 transitions. [2022-11-02 20:23:32,200 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2022-11-02 20:23:32,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1080 transitions. [2022-11-02 20:23:32,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1080 transitions. [2022-11-02 20:23:32,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:32,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1080 transitions. [2022-11-02 20:23:32,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,209 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,209 INFO L175 Difference]: Start difference. First operand has 331 places, 366 transitions, 1288 flow. Second operand 6 states and 1080 transitions. [2022-11-02 20:23:32,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 365 transitions, 1636 flow [2022-11-02 20:23:32,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 365 transitions, 1626 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:32,226 INFO L231 Difference]: Finished difference. Result has 330 places, 365 transitions, 1286 flow [2022-11-02 20:23:32,227 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1286, PETRI_PLACES=330, PETRI_TRANSITIONS=365} [2022-11-02 20:23:32,227 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 51 predicate places. [2022-11-02 20:23:32,228 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 365 transitions, 1286 flow [2022-11-02 20:23:32,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:32,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:32,229 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:32,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:23:32,229 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash 518620431, now seen corresponding path program 1 times [2022-11-02 20:23:32,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:32,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189166702] [2022-11-02 20:23:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:32,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:33,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189166702] [2022-11-02 20:23:33,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189166702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:33,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:33,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43349527] [2022-11-02 20:23:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:33,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:33,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:33,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:33,123 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 280 [2022-11-02 20:23:33,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 365 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:33,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:33,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 280 [2022-11-02 20:23:33,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:34,958 INFO L130 PetriNetUnfolder]: 1207/3991 cut-off events. [2022-11-02 20:23:34,958 INFO L131 PetriNetUnfolder]: For 1332/1406 co-relation queries the response was YES. [2022-11-02 20:23:34,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8103 conditions, 3991 events. 1207/3991 cut-off events. For 1332/1406 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 26999 event pairs, 792 based on Foata normal form. 0/3592 useless extension candidates. Maximal degree in co-relation 7899. Up to 2567 conditions per place. [2022-11-02 20:23:35,006 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 169 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2022-11-02 20:23:35,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 364 transitions, 1632 flow [2022-11-02 20:23:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-02 20:23:35,014 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6422619047619048 [2022-11-02 20:23:35,014 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-02 20:23:35,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-02 20:23:35,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:35,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-02 20:23:35,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,026 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,026 INFO L175 Difference]: Start difference. First operand has 330 places, 365 transitions, 1286 flow. Second operand 6 states and 1079 transitions. [2022-11-02 20:23:35,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 364 transitions, 1632 flow [2022-11-02 20:23:35,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 364 transitions, 1622 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:35,044 INFO L231 Difference]: Finished difference. Result has 329 places, 364 transitions, 1284 flow [2022-11-02 20:23:35,045 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1284, PETRI_PLACES=329, PETRI_TRANSITIONS=364} [2022-11-02 20:23:35,046 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 50 predicate places. [2022-11-02 20:23:35,046 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 364 transitions, 1284 flow [2022-11-02 20:23:35,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:35,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:35,047 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:23:35,048 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:35,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1341513517, now seen corresponding path program 1 times [2022-11-02 20:23:35,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:35,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087866944] [2022-11-02 20:23:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:36,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:36,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087866944] [2022-11-02 20:23:36,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087866944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:36,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:36,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:36,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720164612] [2022-11-02 20:23:36,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:36,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:36,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:36,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:36,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:36,125 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-02 20:23:36,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 364 transitions, 1284 flow. Second operand has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:36,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:36,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-02 20:23:36,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:38,215 INFO L130 PetriNetUnfolder]: 1524/4617 cut-off events. [2022-11-02 20:23:38,215 INFO L131 PetriNetUnfolder]: For 1471/1557 co-relation queries the response was YES. [2022-11-02 20:23:38,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9520 conditions, 4617 events. 1524/4617 cut-off events. For 1471/1557 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31601 event pairs, 624 based on Foata normal form. 16/4213 useless extension candidates. Maximal degree in co-relation 9315. Up to 2609 conditions per place. [2022-11-02 20:23:38,358 INFO L137 encePairwiseOnDemand]: 257/280 looper letters, 251 selfloop transitions, 130 changer transitions 0/573 dead transitions. [2022-11-02 20:23:38,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 573 transitions, 2840 flow [2022-11-02 20:23:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-02 20:23:38,362 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.736904761904762 [2022-11-02 20:23:38,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-02 20:23:38,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-02 20:23:38,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:38,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-02 20:23:38,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,376 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,377 INFO L175 Difference]: Start difference. First operand has 329 places, 364 transitions, 1284 flow. Second operand 6 states and 1238 transitions. [2022-11-02 20:23:38,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 573 transitions, 2840 flow [2022-11-02 20:23:38,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 573 transitions, 2830 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:23:38,405 INFO L231 Difference]: Finished difference. Result has 334 places, 493 transitions, 2502 flow [2022-11-02 20:23:38,406 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2502, PETRI_PLACES=334, PETRI_TRANSITIONS=493} [2022-11-02 20:23:38,408 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 55 predicate places. [2022-11-02 20:23:38,409 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 493 transitions, 2502 flow [2022-11-02 20:23:38,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:38,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:38,410 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:23:38,410 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash -289697930, now seen corresponding path program 1 times [2022-11-02 20:23:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:38,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748578990] [2022-11-02 20:23:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:39,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:39,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748578990] [2022-11-02 20:23:39,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748578990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:39,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:39,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:39,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722337491] [2022-11-02 20:23:39,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:39,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:39,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:39,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:39,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:39,369 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-02 20:23:39,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 493 transitions, 2502 flow. Second operand has 6 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:39,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:39,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-02 20:23:39,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:41,700 INFO L130 PetriNetUnfolder]: 1637/5418 cut-off events. [2022-11-02 20:23:41,701 INFO L131 PetriNetUnfolder]: For 3777/3944 co-relation queries the response was YES. [2022-11-02 20:23:41,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12545 conditions, 5418 events. 1637/5418 cut-off events. For 3777/3944 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40597 event pairs, 508 based on Foata normal form. 0/5046 useless extension candidates. Maximal degree in co-relation 12336. Up to 2869 conditions per place. [2022-11-02 20:23:41,752 INFO L137 encePairwiseOnDemand]: 258/280 looper letters, 375 selfloop transitions, 129 changer transitions 5/701 dead transitions. [2022-11-02 20:23:41,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 701 transitions, 4558 flow [2022-11-02 20:23:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1237 transitions. [2022-11-02 20:23:41,756 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7363095238095239 [2022-11-02 20:23:41,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1237 transitions. [2022-11-02 20:23:41,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1237 transitions. [2022-11-02 20:23:41,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:41,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1237 transitions. [2022-11-02 20:23:41,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.16666666666666) internal successors, (1237), 6 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,765 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,765 INFO L175 Difference]: Start difference. First operand has 334 places, 493 transitions, 2502 flow. Second operand 6 states and 1237 transitions. [2022-11-02 20:23:41,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 701 transitions, 4558 flow [2022-11-02 20:23:41,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 701 transitions, 4558 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:41,798 INFO L231 Difference]: Finished difference. Result has 344 places, 620 transitions, 3968 flow [2022-11-02 20:23:41,799 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=2502, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3968, PETRI_PLACES=344, PETRI_TRANSITIONS=620} [2022-11-02 20:23:41,800 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 65 predicate places. [2022-11-02 20:23:41,800 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 620 transitions, 3968 flow [2022-11-02 20:23:41,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:41,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:41,801 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:41,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:23:41,802 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:41,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1844961197, now seen corresponding path program 1 times [2022-11-02 20:23:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:41,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015745164] [2022-11-02 20:23:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:42,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:42,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015745164] [2022-11-02 20:23:42,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015745164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:42,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:42,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:23:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600125449] [2022-11-02 20:23:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:42,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:42,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:42,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:42,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:42,987 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 280 [2022-11-02 20:23:42,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 620 transitions, 3968 flow. Second operand has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:42,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:42,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 280 [2022-11-02 20:23:42,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:45,313 INFO L130 PetriNetUnfolder]: 1747/5576 cut-off events. [2022-11-02 20:23:45,313 INFO L131 PetriNetUnfolder]: For 5717/5745 co-relation queries the response was YES. [2022-11-02 20:23:45,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14912 conditions, 5576 events. 1747/5576 cut-off events. For 5717/5745 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40942 event pairs, 657 based on Foata normal form. 0/5272 useless extension candidates. Maximal degree in co-relation 14699. Up to 3519 conditions per place. [2022-11-02 20:23:45,352 INFO L137 encePairwiseOnDemand]: 261/280 looper letters, 445 selfloop transitions, 84 changer transitions 0/718 dead transitions. [2022-11-02 20:23:45,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 718 transitions, 5540 flow [2022-11-02 20:23:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:23:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1151 transitions. [2022-11-02 20:23:45,359 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6851190476190476 [2022-11-02 20:23:45,359 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1151 transitions. [2022-11-02 20:23:45,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1151 transitions. [2022-11-02 20:23:45,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:45,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1151 transitions. [2022-11-02 20:23:45,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.83333333333334) internal successors, (1151), 6 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,367 INFO L175 Difference]: Start difference. First operand has 344 places, 620 transitions, 3968 flow. Second operand 6 states and 1151 transitions. [2022-11-02 20:23:45,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 718 transitions, 5540 flow [2022-11-02 20:23:45,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 718 transitions, 5286 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:45,420 INFO L231 Difference]: Finished difference. Result has 353 places, 691 transitions, 4504 flow [2022-11-02 20:23:45,422 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=3720, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4504, PETRI_PLACES=353, PETRI_TRANSITIONS=691} [2022-11-02 20:23:45,423 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 74 predicate places. [2022-11-02 20:23:45,423 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 691 transitions, 4504 flow [2022-11-02 20:23:45,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:45,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:45,424 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:45,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:23:45,425 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:45,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1687157928, now seen corresponding path program 1 times [2022-11-02 20:23:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:45,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106793964] [2022-11-02 20:23:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:48,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:48,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106793964] [2022-11-02 20:23:48,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106793964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:48,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:48,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:23:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99416713] [2022-11-02 20:23:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:48,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:23:48,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:48,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:23:48,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:23:48,651 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-02 20:23:48,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 691 transitions, 4504 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:48,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-02 20:23:48,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:23:54,202 INFO L130 PetriNetUnfolder]: 2387/6866 cut-off events. [2022-11-02 20:23:54,202 INFO L131 PetriNetUnfolder]: For 8621/8698 co-relation queries the response was YES. [2022-11-02 20:23:54,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20538 conditions, 6866 events. 2387/6866 cut-off events. For 8621/8698 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 51974 event pairs, 393 based on Foata normal form. 79/6634 useless extension candidates. Maximal degree in co-relation 20313. Up to 2770 conditions per place. [2022-11-02 20:23:54,279 INFO L137 encePairwiseOnDemand]: 253/280 looper letters, 688 selfloop transitions, 179 changer transitions 6/1036 dead transitions. [2022-11-02 20:23:54,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1036 transitions, 8170 flow [2022-11-02 20:23:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:23:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-02 20:23:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3656 transitions. [2022-11-02 20:23:54,287 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.544047619047619 [2022-11-02 20:23:54,288 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3656 transitions. [2022-11-02 20:23:54,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3656 transitions. [2022-11-02 20:23:54,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:23:54,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3656 transitions. [2022-11-02 20:23:54,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 152.33333333333334) internal successors, (3656), 24 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,311 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,311 INFO L175 Difference]: Start difference. First operand has 353 places, 691 transitions, 4504 flow. Second operand 24 states and 3656 transitions. [2022-11-02 20:23:54,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1036 transitions, 8170 flow [2022-11-02 20:23:54,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1036 transitions, 8098 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-02 20:23:54,420 INFO L231 Difference]: Finished difference. Result has 385 places, 747 transitions, 5496 flow [2022-11-02 20:23:54,421 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=4450, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5496, PETRI_PLACES=385, PETRI_TRANSITIONS=747} [2022-11-02 20:23:54,422 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 106 predicate places. [2022-11-02 20:23:54,422 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 747 transitions, 5496 flow [2022-11-02 20:23:54,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:23:54,424 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:23:54,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:23:54,424 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:23:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1567649258, now seen corresponding path program 2 times [2022-11-02 20:23:54,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:54,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677237370] [2022-11-02 20:23:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:54,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:23:56,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:56,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677237370] [2022-11-02 20:23:56,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677237370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:56,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:56,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:23:56,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111861659] [2022-11-02 20:23:56,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:56,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:23:56,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:56,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:23:56,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:23:56,742 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 280 [2022-11-02 20:23:56,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 747 transitions, 5496 flow. Second operand has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:56,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:23:56,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 280 [2022-11-02 20:23:56,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:04,583 INFO L130 PetriNetUnfolder]: 3660/10640 cut-off events. [2022-11-02 20:24:04,583 INFO L131 PetriNetUnfolder]: For 18124/18237 co-relation queries the response was YES. [2022-11-02 20:24:04,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33220 conditions, 10640 events. 3660/10640 cut-off events. For 18124/18237 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 92141 event pairs, 980 based on Foata normal form. 111/10288 useless extension candidates. Maximal degree in co-relation 32983. Up to 3371 conditions per place. [2022-11-02 20:24:04,715 INFO L137 encePairwiseOnDemand]: 239/280 looper letters, 859 selfloop transitions, 287 changer transitions 6/1309 dead transitions. [2022-11-02 20:24:04,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1309 transitions, 11505 flow [2022-11-02 20:24:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:24:04,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:24:04,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2954 transitions. [2022-11-02 20:24:04,722 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5552631578947368 [2022-11-02 20:24:04,722 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2954 transitions. [2022-11-02 20:24:04,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2954 transitions. [2022-11-02 20:24:04,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:04,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2954 transitions. [2022-11-02 20:24:04,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.47368421052633) internal successors, (2954), 19 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:04,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 280.0) internal successors, (5600), 20 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:04,742 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 280.0) internal successors, (5600), 20 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:04,743 INFO L175 Difference]: Start difference. First operand has 385 places, 747 transitions, 5496 flow. Second operand 19 states and 2954 transitions. [2022-11-02 20:24:04,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 1309 transitions, 11505 flow [2022-11-02 20:24:04,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1309 transitions, 11446 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-02 20:24:04,915 INFO L231 Difference]: Finished difference. Result has 406 places, 864 transitions, 7913 flow [2022-11-02 20:24:04,916 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=5462, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7913, PETRI_PLACES=406, PETRI_TRANSITIONS=864} [2022-11-02 20:24:04,917 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 127 predicate places. [2022-11-02 20:24:04,917 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 864 transitions, 7913 flow [2022-11-02 20:24:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:04,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:04,919 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:24:04,920 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:24:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash -825766224, now seen corresponding path program 3 times [2022-11-02 20:24:04,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:04,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685443647] [2022-11-02 20:24:04,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:24:07,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:07,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685443647] [2022-11-02 20:24:07,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685443647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:07,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:07,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:24:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535776682] [2022-11-02 20:24:07,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:07,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:24:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:24:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:24:07,476 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 280 [2022-11-02 20:24:07,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 864 transitions, 7913 flow. Second operand has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:07,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:07,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 280 [2022-11-02 20:24:07,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:17,074 INFO L130 PetriNetUnfolder]: 4972/14481 cut-off events. [2022-11-02 20:24:17,074 INFO L131 PetriNetUnfolder]: For 33172/33302 co-relation queries the response was YES. [2022-11-02 20:24:17,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47135 conditions, 14481 events. 4972/14481 cut-off events. For 33172/33302 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 135611 event pairs, 1563 based on Foata normal form. 129/14001 useless extension candidates. Maximal degree in co-relation 47059. Up to 4754 conditions per place. [2022-11-02 20:24:17,302 INFO L137 encePairwiseOnDemand]: 239/280 looper letters, 969 selfloop transitions, 331 changer transitions 6/1463 dead transitions. [2022-11-02 20:24:17,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 1463 transitions, 14906 flow [2022-11-02 20:24:17,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-02 20:24:17,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-02 20:24:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3371 transitions. [2022-11-02 20:24:17,313 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5472402597402597 [2022-11-02 20:24:17,314 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3371 transitions. [2022-11-02 20:24:17,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3371 transitions. [2022-11-02 20:24:17,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:17,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3371 transitions. [2022-11-02 20:24:17,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 153.22727272727272) internal successors, (3371), 22 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:17,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 280.0) internal successors, (6440), 23 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:17,339 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 280.0) internal successors, (6440), 23 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:17,339 INFO L175 Difference]: Start difference. First operand has 406 places, 864 transitions, 7913 flow. Second operand 22 states and 3371 transitions. [2022-11-02 20:24:17,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 1463 transitions, 14906 flow [2022-11-02 20:24:17,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1463 transitions, 14773 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-02 20:24:17,677 INFO L231 Difference]: Finished difference. Result has 431 places, 993 transitions, 10990 flow [2022-11-02 20:24:17,679 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=7794, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=10990, PETRI_PLACES=431, PETRI_TRANSITIONS=993} [2022-11-02 20:24:17,680 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 152 predicate places. [2022-11-02 20:24:17,680 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 993 transitions, 10990 flow [2022-11-02 20:24:17,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:17,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:17,682 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:17,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:24:17,682 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:24:17,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1323830916, now seen corresponding path program 4 times [2022-11-02 20:24:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:17,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693711507] [2022-11-02 20:24:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:24:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:19,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693711507] [2022-11-02 20:24:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693711507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:19,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:19,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:24:19,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107154104] [2022-11-02 20:24:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:19,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:24:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:19,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:24:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:24:19,940 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-02 20:24:19,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 993 transitions, 10990 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:19,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:19,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-02 20:24:19,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:31,416 INFO L130 PetriNetUnfolder]: 6496/18714 cut-off events. [2022-11-02 20:24:31,416 INFO L131 PetriNetUnfolder]: For 56488/56727 co-relation queries the response was YES. [2022-11-02 20:24:31,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64025 conditions, 18714 events. 6496/18714 cut-off events. For 56488/56727 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 185333 event pairs, 1480 based on Foata normal form. 138/18077 useless extension candidates. Maximal degree in co-relation 63923. Up to 7109 conditions per place. [2022-11-02 20:24:31,762 INFO L137 encePairwiseOnDemand]: 244/280 looper letters, 1101 selfloop transitions, 394 changer transitions 4/1662 dead transitions. [2022-11-02 20:24:31,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 1662 transitions, 19873 flow [2022-11-02 20:24:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-02 20:24:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-02 20:24:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3483 transitions. [2022-11-02 20:24:31,773 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5654220779220779 [2022-11-02 20:24:31,773 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3483 transitions. [2022-11-02 20:24:31,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3483 transitions. [2022-11-02 20:24:31,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:31,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3483 transitions. [2022-11-02 20:24:31,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 158.3181818181818) internal successors, (3483), 22 states have internal predecessors, (3483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:31,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 280.0) internal successors, (6440), 23 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:31,797 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 280.0) internal successors, (6440), 23 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:31,798 INFO L175 Difference]: Start difference. First operand has 431 places, 993 transitions, 10990 flow. Second operand 22 states and 3483 transitions. [2022-11-02 20:24:31,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 1662 transitions, 19873 flow [2022-11-02 20:24:32,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1662 transitions, 19701 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-02 20:24:32,486 INFO L231 Difference]: Finished difference. Result has 460 places, 1163 transitions, 15132 flow [2022-11-02 20:24:32,487 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=10850, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=15132, PETRI_PLACES=460, PETRI_TRANSITIONS=1163} [2022-11-02 20:24:32,487 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 181 predicate places. [2022-11-02 20:24:32,487 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 1163 transitions, 15132 flow [2022-11-02 20:24:32,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:32,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:32,488 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:32,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:24:32,489 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:24:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:32,489 INFO L85 PathProgramCache]: Analyzing trace with hash 224435444, now seen corresponding path program 5 times [2022-11-02 20:24:32,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:32,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575081474] [2022-11-02 20:24:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:32,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:24:34,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:34,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575081474] [2022-11-02 20:24:34,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575081474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:34,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:34,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:24:34,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109877140] [2022-11-02 20:24:34,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:34,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:24:34,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:24:34,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:24:34,404 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-02 20:24:34,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 1163 transitions, 15132 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:34,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:34,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-02 20:24:34,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:24:52,496 INFO L130 PetriNetUnfolder]: 10330/29794 cut-off events. [2022-11-02 20:24:52,497 INFO L131 PetriNetUnfolder]: For 105247/105553 co-relation queries the response was YES. [2022-11-02 20:24:52,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102818 conditions, 29794 events. 10330/29794 cut-off events. For 105247/105553 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 325547 event pairs, 2978 based on Foata normal form. 217/28777 useless extension candidates. Maximal degree in co-relation 102700. Up to 9420 conditions per place. [2022-11-02 20:24:53,062 INFO L137 encePairwiseOnDemand]: 245/280 looper letters, 963 selfloop transitions, 605 changer transitions 3/1734 dead transitions. [2022-11-02 20:24:53,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1734 transitions, 24719 flow [2022-11-02 20:24:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:24:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:24:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2807 transitions. [2022-11-02 20:24:53,068 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5569444444444445 [2022-11-02 20:24:53,068 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2807 transitions. [2022-11-02 20:24:53,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2807 transitions. [2022-11-02 20:24:53,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:24:53,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2807 transitions. [2022-11-02 20:24:53,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 155.94444444444446) internal successors, (2807), 18 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:53,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 280.0) internal successors, (5320), 19 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:53,083 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 280.0) internal successors, (5320), 19 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:53,083 INFO L175 Difference]: Start difference. First operand has 460 places, 1163 transitions, 15132 flow. Second operand 18 states and 2807 transitions. [2022-11-02 20:24:53,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1734 transitions, 24719 flow [2022-11-02 20:24:54,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1734 transitions, 24391 flow, removed 138 selfloop flow, removed 4 redundant places. [2022-11-02 20:24:54,043 INFO L231 Difference]: Finished difference. Result has 483 places, 1371 transitions, 21543 flow [2022-11-02 20:24:54,045 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=14878, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21543, PETRI_PLACES=483, PETRI_TRANSITIONS=1371} [2022-11-02 20:24:54,045 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 204 predicate places. [2022-11-02 20:24:54,045 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1371 transitions, 21543 flow [2022-11-02 20:24:54,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:54,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:24:54,047 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:54,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:24:54,048 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:24:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:54,049 INFO L85 PathProgramCache]: Analyzing trace with hash -835769134, now seen corresponding path program 6 times [2022-11-02 20:24:54,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:54,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067361521] [2022-11-02 20:24:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:54,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:24:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:56,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067361521] [2022-11-02 20:24:56,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067361521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:56,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:56,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:24:56,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569033281] [2022-11-02 20:24:56,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:56,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:24:56,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:24:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:24:56,375 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 280 [2022-11-02 20:24:56,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1371 transitions, 21543 flow. Second operand has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:56,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:24:56,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 280 [2022-11-02 20:24:56,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:25:22,582 INFO L130 PetriNetUnfolder]: 12630/36291 cut-off events. [2022-11-02 20:25:22,583 INFO L131 PetriNetUnfolder]: For 163695/164279 co-relation queries the response was YES. [2022-11-02 20:25:23,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130005 conditions, 36291 events. 12630/36291 cut-off events. For 163695/164279 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 412088 event pairs, 3388 based on Foata normal form. 401/35208 useless extension candidates. Maximal degree in co-relation 129871. Up to 11909 conditions per place. [2022-11-02 20:25:23,370 INFO L137 encePairwiseOnDemand]: 240/280 looper letters, 1193 selfloop transitions, 666 changer transitions 5/2021 dead transitions. [2022-11-02 20:25:23,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 2021 transitions, 31890 flow [2022-11-02 20:25:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-02 20:25:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-02 20:25:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3494 transitions. [2022-11-02 20:25:23,376 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5425465838509317 [2022-11-02 20:25:23,377 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3494 transitions. [2022-11-02 20:25:23,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3494 transitions. [2022-11-02 20:25:23,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:25:23,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3494 transitions. [2022-11-02 20:25:23,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 151.91304347826087) internal successors, (3494), 23 states have internal predecessors, (3494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:23,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 280.0) internal successors, (6720), 24 states have internal predecessors, (6720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:23,394 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 280.0) internal successors, (6720), 24 states have internal predecessors, (6720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:23,394 INFO L175 Difference]: Start difference. First operand has 483 places, 1371 transitions, 21543 flow. Second operand 23 states and 3494 transitions. [2022-11-02 20:25:23,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 2021 transitions, 31890 flow [2022-11-02 20:25:25,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 2021 transitions, 31716 flow, removed 48 selfloop flow, removed 4 redundant places. [2022-11-02 20:25:25,206 INFO L231 Difference]: Finished difference. Result has 515 places, 1542 transitions, 27468 flow [2022-11-02 20:25:25,207 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=21397, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=501, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=27468, PETRI_PLACES=515, PETRI_TRANSITIONS=1542} [2022-11-02 20:25:25,208 INFO L287 CegarLoopForPetriNet]: 279 programPoint places, 236 predicate places. [2022-11-02 20:25:25,208 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 1542 transitions, 27468 flow [2022-11-02 20:25:25,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:25,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:25:25,209 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:25:25,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:25:25,210 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:25:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:25,210 INFO L85 PathProgramCache]: Analyzing trace with hash 257960948, now seen corresponding path program 7 times [2022-11-02 20:25:25,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:25,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257230392] [2022-11-02 20:25:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-02 20:25:26,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:26,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257230392] [2022-11-02 20:25:26,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257230392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:26,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:26,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 20:25:26,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459277477] [2022-11-02 20:25:26,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:26,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:25:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:25:26,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:25:26,955 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-02 20:25:26,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1542 transitions, 27468 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:26,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:25:26,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-02 20:25:26,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand