./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 bf4857c62d483a773a35fae36979eac9c903a6d30c1e665676e5036b445ef343 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:32,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:32,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:03:32,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:32,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:32,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:32,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:32,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:32,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:32,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:32,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:32,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:32,216 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:32,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:32,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:32,219 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:32,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:32,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:32,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:32,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:32,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:32,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:32,222 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:03:32,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:32,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:32,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:32,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:32,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:32,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:32,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:32,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:32,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:32,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:32,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:32,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:32,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:32,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:32,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:32,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:32,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:32,230 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:32,230 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf4857c62d483a773a35fae36979eac9c903a6d30c1e665676e5036b445ef343 [2023-11-19 08:03:32,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:32,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:32,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:32,539 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:32,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:32,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-2.i [2023-11-19 08:03:35,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:36,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:36,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-2.i [2023-11-19 08:03:36,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/data/8ecb113c3/ed443b7d4a2546c385b633fea7487c4f/FLAGb684e1e45 [2023-11-19 08:03:36,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/data/8ecb113c3/ed443b7d4a2546c385b633fea7487c4f [2023-11-19 08:03:36,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:36,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:36,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:36,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:36,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:36,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a911d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:36,430 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:03:36,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:36,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:36,888 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:03:36,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:37,022 WARN L675 CHandler]: The function ffs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:03:37,023 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:03:37,031 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:37,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37 WrapperNode [2023-11-19 08:03:37,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:37,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:37,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:37,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:37,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,161 INFO L138 Inliner]: procedures = 281, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 129 [2023-11-19 08:03:37,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:37,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:37,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:37,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:37,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:37,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:37,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:37,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:37,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (1/1) ... [2023-11-19 08:03:37,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:37,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:03:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:03:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:03:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:03:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:03:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2023-11-19 08:03:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 08:03:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 08:03:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:37,330 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:37,512 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:37,514 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:37,923 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:37,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:37,937 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:03:37,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:37 BoogieIcfgContainer [2023-11-19 08:03:37,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:37,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:37,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:37,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:37,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:36" (1/3) ... [2023-11-19 08:03:37,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30697614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:37, skipping insertion in model container [2023-11-19 08:03:37,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:37" (2/3) ... [2023-11-19 08:03:37,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30697614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:37, skipping insertion in model container [2023-11-19 08:03:37,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:37" (3/3) ... [2023-11-19 08:03:37,957 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-bitmask-race-2.i [2023-11-19 08:03:37,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:37,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:37,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-19 08:03:37,982 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:38,096 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 08:03:38,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,332 INFO L124 PetriNetUnfolderBase]: 16/284 cut-off events. [2023-11-19 08:03:38,332 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:03:38,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 16/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 615 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-11-19 08:03:38,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,367 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:38,379 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,381 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 196 transitions, 399 flow [2023-11-19 08:03:38,471 INFO L124 PetriNetUnfolderBase]: 16/284 cut-off events. [2023-11-19 08:03:38,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:03:38,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 16/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 615 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-11-19 08:03:38,482 INFO L119 LiptonReduction]: Number of co-enabled transitions 9120 [2023-11-19 08:03:43,125 INFO L134 LiptonReduction]: Checked pairs total: 47897 [2023-11-19 08:03:43,125 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-11-19 08:03:43,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:43,149 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=LoopHeads, 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;@1ff8d8a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:43,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-19 08:03:43,151 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:43,152 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 08:03:43,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:43,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:43,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:03:43,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:43,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 646, now seen corresponding path program 1 times [2023-11-19 08:03:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:43,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906192769] [2023-11-19 08:03:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:43,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:43,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:43,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906192769] [2023-11-19 08:03:43,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906192769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:43,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:43,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:03:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594724472] [2023-11-19 08:03:43,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:43,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:03:43,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:03:43,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:03:43,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 321 [2023-11-19 08:03:43,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 90 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:43,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 321 [2023-11-19 08:03:43,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:43,515 INFO L124 PetriNetUnfolderBase]: 203/766 cut-off events. [2023-11-19 08:03:43,515 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:03:43,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 766 events. 203/766 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4576 event pairs, 153 based on Foata normal form. 0/710 useless extension candidates. Maximal degree in co-relation 1083. Up to 400 conditions per place. [2023-11-19 08:03:43,524 INFO L140 encePairwiseOnDemand]: 320/321 looper letters, 33 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2023-11-19 08:03:43,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 89 transitions, 251 flow [2023-11-19 08:03:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:03:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:03:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 414 transitions. [2023-11-19 08:03:43,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6448598130841121 [2023-11-19 08:03:43,543 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 414 transitions. [2023-11-19 08:03:43,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 414 transitions. [2023-11-19 08:03:43,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:43,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 414 transitions. [2023-11-19 08:03:43,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 207.0) internal successors, (414), 2 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,560 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,562 INFO L175 Difference]: Start difference. First operand has 88 places, 90 transitions, 187 flow. Second operand 2 states and 414 transitions. [2023-11-19 08:03:43,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 89 transitions, 251 flow [2023-11-19 08:03:43,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 89 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:43,571 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 185 flow [2023-11-19 08:03:43,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=185, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2023-11-19 08:03:43,577 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2023-11-19 08:03:43,578 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 185 flow [2023-11-19 08:03:43,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:43,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 08:03:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:43,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:43,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash 19760811, now seen corresponding path program 1 times [2023-11-19 08:03:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771799733] [2023-11-19 08:03:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:43,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:43,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771799733] [2023-11-19 08:03:43,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771799733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:43,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:43,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:43,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586970216] [2023-11-19 08:03:43,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:43,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:43,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 321 [2023-11-19 08:03:43,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:43,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:43,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 321 [2023-11-19 08:03:43,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:44,026 INFO L124 PetriNetUnfolderBase]: 286/984 cut-off events. [2023-11-19 08:03:44,027 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:03:44,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 984 events. 286/984 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6470 event pairs, 102 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 1540. Up to 286 conditions per place. [2023-11-19 08:03:44,038 INFO L140 encePairwiseOnDemand]: 310/321 looper letters, 59 selfloop transitions, 8 changer transitions 0/119 dead transitions. [2023-11-19 08:03:44,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 379 flow [2023-11-19 08:03:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:44,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-11-19 08:03:44,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6303219106957425 [2023-11-19 08:03:44,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-11-19 08:03:44,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-11-19 08:03:44,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:44,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-11-19 08:03:44,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,059 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 185 flow. Second operand 3 states and 607 transitions. [2023-11-19 08:03:44,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 379 flow [2023-11-19 08:03:44,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:44,067 INFO L231 Difference]: Finished difference. Result has 92 places, 97 transitions, 255 flow [2023-11-19 08:03:44,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=92, PETRI_TRANSITIONS=97} [2023-11-19 08:03:44,077 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2023-11-19 08:03:44,077 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 97 transitions, 255 flow [2023-11-19 08:03:44,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:44,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:44,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:44,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:44,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2023378723, now seen corresponding path program 1 times [2023-11-19 08:03:44,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:44,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843424730] [2023-11-19 08:03:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:44,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843424730] [2023-11-19 08:03:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843424730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:44,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946991138] [2023-11-19 08:03:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:44,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:44,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:44,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:44,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 321 [2023-11-19 08:03:44,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 97 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:44,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 321 [2023-11-19 08:03:44,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:44,625 INFO L124 PetriNetUnfolderBase]: 269/1027 cut-off events. [2023-11-19 08:03:44,625 INFO L125 PetriNetUnfolderBase]: For 185/205 co-relation queries the response was YES. [2023-11-19 08:03:44,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1027 events. 269/1027 cut-off events. For 185/205 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6975 event pairs, 141 based on Foata normal form. 10/935 useless extension candidates. Maximal degree in co-relation 1753. Up to 488 conditions per place. [2023-11-19 08:03:44,634 INFO L140 encePairwiseOnDemand]: 316/321 looper letters, 60 selfloop transitions, 4 changer transitions 0/121 dead transitions. [2023-11-19 08:03:44,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 121 transitions, 451 flow [2023-11-19 08:03:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 782 transitions. [2023-11-19 08:03:44,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6090342679127726 [2023-11-19 08:03:44,638 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 782 transitions. [2023-11-19 08:03:44,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 782 transitions. [2023-11-19 08:03:44,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:44,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 782 transitions. [2023-11-19 08:03:44,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 195.5) internal successors, (782), 4 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,647 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,648 INFO L175 Difference]: Start difference. First operand has 92 places, 97 transitions, 255 flow. Second operand 4 states and 782 transitions. [2023-11-19 08:03:44,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 121 transitions, 451 flow [2023-11-19 08:03:44,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 429 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:44,655 INFO L231 Difference]: Finished difference. Result has 95 places, 99 transitions, 262 flow [2023-11-19 08:03:44,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=95, PETRI_TRANSITIONS=99} [2023-11-19 08:03:44,656 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2023-11-19 08:03:44,656 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 99 transitions, 262 flow [2023-11-19 08:03:44,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:44,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:44,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:44,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:44,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:44,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash -747357393, now seen corresponding path program 1 times [2023-11-19 08:03:44,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:44,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503691528] [2023-11-19 08:03:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:44,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:45,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:45,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503691528] [2023-11-19 08:03:45,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503691528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:45,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:45,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033069281] [2023-11-19 08:03:45,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:45,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:45,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:45,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:45,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:45,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 321 [2023-11-19 08:03:45,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:45,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 321 [2023-11-19 08:03:45,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:45,857 INFO L124 PetriNetUnfolderBase]: 654/1745 cut-off events. [2023-11-19 08:03:45,858 INFO L125 PetriNetUnfolderBase]: For 187/232 co-relation queries the response was YES. [2023-11-19 08:03:45,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3368 conditions, 1745 events. 654/1745 cut-off events. For 187/232 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 11687 event pairs, 302 based on Foata normal form. 22/1634 useless extension candidates. Maximal degree in co-relation 3360. Up to 780 conditions per place. [2023-11-19 08:03:45,873 INFO L140 encePairwiseOnDemand]: 298/321 looper letters, 106 selfloop transitions, 29 changer transitions 0/172 dead transitions. [2023-11-19 08:03:45,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 172 transitions, 712 flow [2023-11-19 08:03:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2023-11-19 08:03:45,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5758047767393562 [2023-11-19 08:03:45,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2023-11-19 08:03:45,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2023-11-19 08:03:45,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:45,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2023-11-19 08:03:45,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,893 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,893 INFO L175 Difference]: Start difference. First operand has 95 places, 99 transitions, 262 flow. Second operand 6 states and 1109 transitions. [2023-11-19 08:03:45,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 172 transitions, 712 flow [2023-11-19 08:03:45,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 172 transitions, 708 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:45,901 INFO L231 Difference]: Finished difference. Result has 104 places, 128 transitions, 479 flow [2023-11-19 08:03:45,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=104, PETRI_TRANSITIONS=128} [2023-11-19 08:03:45,903 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2023-11-19 08:03:45,903 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 128 transitions, 479 flow [2023-11-19 08:03:45,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:45,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:45,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:45,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:45,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash -950695055, now seen corresponding path program 1 times [2023-11-19 08:03:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756539097] [2023-11-19 08:03:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:45,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:45,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756539097] [2023-11-19 08:03:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756539097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:45,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:45,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:45,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427700194] [2023-11-19 08:03:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:45,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:45,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:45,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 321 [2023-11-19 08:03:45,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 128 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:45,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:45,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 321 [2023-11-19 08:03:45,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:46,263 INFO L124 PetriNetUnfolderBase]: 362/1209 cut-off events. [2023-11-19 08:03:46,263 INFO L125 PetriNetUnfolderBase]: For 307/329 co-relation queries the response was YES. [2023-11-19 08:03:46,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1209 events. 362/1209 cut-off events. For 307/329 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7846 event pairs, 102 based on Foata normal form. 23/1158 useless extension candidates. Maximal degree in co-relation 2569. Up to 315 conditions per place. [2023-11-19 08:03:46,275 INFO L140 encePairwiseOnDemand]: 317/321 looper letters, 72 selfloop transitions, 2 changer transitions 2/156 dead transitions. [2023-11-19 08:03:46,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 156 transitions, 719 flow [2023-11-19 08:03:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2023-11-19 08:03:46,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6344755970924195 [2023-11-19 08:03:46,279 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 611 transitions. [2023-11-19 08:03:46,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 611 transitions. [2023-11-19 08:03:46,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:46,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 611 transitions. [2023-11-19 08:03:46,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,287 INFO L175 Difference]: Start difference. First operand has 104 places, 128 transitions, 479 flow. Second operand 3 states and 611 transitions. [2023-11-19 08:03:46,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 156 transitions, 719 flow [2023-11-19 08:03:46,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 156 transitions, 719 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:46,297 INFO L231 Difference]: Finished difference. Result has 105 places, 126 transitions, 479 flow [2023-11-19 08:03:46,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=105, PETRI_TRANSITIONS=126} [2023-11-19 08:03:46,300 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 17 predicate places. [2023-11-19 08:03:46,300 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 126 transitions, 479 flow [2023-11-19 08:03:46,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:46,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:46,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:03:46,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:46,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:46,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1733054554, now seen corresponding path program 1 times [2023-11-19 08:03:46,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:46,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481261998] [2023-11-19 08:03:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:46,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:46,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481261998] [2023-11-19 08:03:46,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481261998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:46,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:46,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:46,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122898505] [2023-11-19 08:03:46,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:46,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:46,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:46,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:46,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:46,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 321 [2023-11-19 08:03:46,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 126 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:46,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 321 [2023-11-19 08:03:46,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:46,648 INFO L124 PetriNetUnfolderBase]: 375/1247 cut-off events. [2023-11-19 08:03:46,648 INFO L125 PetriNetUnfolderBase]: For 337/353 co-relation queries the response was YES. [2023-11-19 08:03:46,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2716 conditions, 1247 events. 375/1247 cut-off events. For 337/353 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 8223 event pairs, 153 based on Foata normal form. 2/1160 useless extension candidates. Maximal degree in co-relation 2703. Up to 557 conditions per place. [2023-11-19 08:03:46,658 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 56 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2023-11-19 08:03:46,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 142 transitions, 651 flow [2023-11-19 08:03:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:46,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2023-11-19 08:03:46,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095534787123572 [2023-11-19 08:03:46,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 587 transitions. [2023-11-19 08:03:46,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 587 transitions. [2023-11-19 08:03:46,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:46,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 587 transitions. [2023-11-19 08:03:46,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,668 INFO L175 Difference]: Start difference. First operand has 105 places, 126 transitions, 479 flow. Second operand 3 states and 587 transitions. [2023-11-19 08:03:46,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 142 transitions, 651 flow [2023-11-19 08:03:46,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 142 transitions, 645 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:46,676 INFO L231 Difference]: Finished difference. Result has 106 places, 131 transitions, 529 flow [2023-11-19 08:03:46,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=529, PETRI_PLACES=106, PETRI_TRANSITIONS=131} [2023-11-19 08:03:46,677 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2023-11-19 08:03:46,677 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 131 transitions, 529 flow [2023-11-19 08:03:46,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:46,678 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] [2023-11-19 08:03:46,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:03:46,679 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:46,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1131153753, now seen corresponding path program 1 times [2023-11-19 08:03:46,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:46,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495256456] [2023-11-19 08:03:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:46,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:46,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495256456] [2023-11-19 08:03:46,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495256456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:46,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:46,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:46,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703106589] [2023-11-19 08:03:46,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:46,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:46,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:46,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:46,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 321 [2023-11-19 08:03:46,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 131 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:46,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:46,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 321 [2023-11-19 08:03:46,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:47,020 INFO L124 PetriNetUnfolderBase]: 384/1264 cut-off events. [2023-11-19 08:03:47,021 INFO L125 PetriNetUnfolderBase]: For 512/531 co-relation queries the response was YES. [2023-11-19 08:03:47,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 1264 events. 384/1264 cut-off events. For 512/531 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8344 event pairs, 147 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 2845. Up to 590 conditions per place. [2023-11-19 08:03:47,032 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 64 selfloop transitions, 10 changer transitions 0/153 dead transitions. [2023-11-19 08:03:47,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 153 transitions, 765 flow [2023-11-19 08:03:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:47,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-11-19 08:03:47,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6209761163032191 [2023-11-19 08:03:47,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-11-19 08:03:47,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-11-19 08:03:47,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:47,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-11-19 08:03:47,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,042 INFO L175 Difference]: Start difference. First operand has 106 places, 131 transitions, 529 flow. Second operand 3 states and 598 transitions. [2023-11-19 08:03:47,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 153 transitions, 765 flow [2023-11-19 08:03:47,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 153 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:47,051 INFO L231 Difference]: Finished difference. Result has 107 places, 137 transitions, 585 flow [2023-11-19 08:03:47,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=585, PETRI_PLACES=107, PETRI_TRANSITIONS=137} [2023-11-19 08:03:47,052 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2023-11-19 08:03:47,052 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 137 transitions, 585 flow [2023-11-19 08:03:47,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:47,053 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:47,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:03:47,053 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:47,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:47,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1969036021, now seen corresponding path program 1 times [2023-11-19 08:03:47,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:47,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507968113] [2023-11-19 08:03:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:47,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:47,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:47,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507968113] [2023-11-19 08:03:47,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507968113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:47,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:47,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400096096] [2023-11-19 08:03:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:47,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:47,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 321 [2023-11-19 08:03:47,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 137 transitions, 585 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:47,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 321 [2023-11-19 08:03:47,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:47,387 INFO L124 PetriNetUnfolderBase]: 218/822 cut-off events. [2023-11-19 08:03:47,388 INFO L125 PetriNetUnfolderBase]: For 351/360 co-relation queries the response was YES. [2023-11-19 08:03:47,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 822 events. 218/822 cut-off events. For 351/360 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4971 event pairs, 31 based on Foata normal form. 14/777 useless extension candidates. Maximal degree in co-relation 1865. Up to 206 conditions per place. [2023-11-19 08:03:47,398 INFO L140 encePairwiseOnDemand]: 317/321 looper letters, 45 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-11-19 08:03:47,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 124 transitions, 583 flow [2023-11-19 08:03:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-11-19 08:03:47,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6251298026998962 [2023-11-19 08:03:47,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-11-19 08:03:47,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-11-19 08:03:47,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:47,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-11-19 08:03:47,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,408 INFO L175 Difference]: Start difference. First operand has 107 places, 137 transitions, 585 flow. Second operand 3 states and 602 transitions. [2023-11-19 08:03:47,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 124 transitions, 583 flow [2023-11-19 08:03:47,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 124 transitions, 545 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-11-19 08:03:47,418 INFO L231 Difference]: Finished difference. Result has 97 places, 113 transitions, 417 flow [2023-11-19 08:03:47,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=417, PETRI_PLACES=97, PETRI_TRANSITIONS=113} [2023-11-19 08:03:47,421 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2023-11-19 08:03:47,421 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 113 transitions, 417 flow [2023-11-19 08:03:47,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:47,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:47,422 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] [2023-11-19 08:03:47,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:03:47,422 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:47,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1165489279, now seen corresponding path program 1 times [2023-11-19 08:03:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:47,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552365610] [2023-11-19 08:03:47,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:47,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:47,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552365610] [2023-11-19 08:03:47,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552365610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:47,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:47,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:47,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934818753] [2023-11-19 08:03:47,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:47,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:47,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:47,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:47,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:48,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 321 [2023-11-19 08:03:48,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 113 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:48,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:48,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 321 [2023-11-19 08:03:48,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:48,603 INFO L124 PetriNetUnfolderBase]: 377/1074 cut-off events. [2023-11-19 08:03:48,603 INFO L125 PetriNetUnfolderBase]: For 386/391 co-relation queries the response was YES. [2023-11-19 08:03:48,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2550 conditions, 1074 events. 377/1074 cut-off events. For 386/391 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6264 event pairs, 139 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 2538. Up to 589 conditions per place. [2023-11-19 08:03:48,612 INFO L140 encePairwiseOnDemand]: 310/321 looper letters, 91 selfloop transitions, 33 changer transitions 8/187 dead transitions. [2023-11-19 08:03:48,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 187 transitions, 928 flow [2023-11-19 08:03:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2023-11-19 08:03:48,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5934579439252337 [2023-11-19 08:03:48,617 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1143 transitions. [2023-11-19 08:03:48,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1143 transitions. [2023-11-19 08:03:48,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:48,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1143 transitions. [2023-11-19 08:03:48,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:48,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:48,627 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:48,627 INFO L175 Difference]: Start difference. First operand has 97 places, 113 transitions, 417 flow. Second operand 6 states and 1143 transitions. [2023-11-19 08:03:48,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 187 transitions, 928 flow [2023-11-19 08:03:48,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 187 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:48,635 INFO L231 Difference]: Finished difference. Result has 106 places, 143 transitions, 714 flow [2023-11-19 08:03:48,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=106, PETRI_TRANSITIONS=143} [2023-11-19 08:03:48,636 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2023-11-19 08:03:48,637 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 143 transitions, 714 flow [2023-11-19 08:03:48,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:48,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:48,638 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] [2023-11-19 08:03:48,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:03:48,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:48,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1712045811, now seen corresponding path program 1 times [2023-11-19 08:03:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:48,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130135721] [2023-11-19 08:03:48,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:48,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130135721] [2023-11-19 08:03:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130135721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765237906] [2023-11-19 08:03:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:49,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:49,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:49,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 321 [2023-11-19 08:03:49,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 143 transitions, 714 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:49,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:49,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 321 [2023-11-19 08:03:49,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:49,874 INFO L124 PetriNetUnfolderBase]: 635/1578 cut-off events. [2023-11-19 08:03:49,874 INFO L125 PetriNetUnfolderBase]: For 976/993 co-relation queries the response was YES. [2023-11-19 08:03:49,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4487 conditions, 1578 events. 635/1578 cut-off events. For 976/993 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9726 event pairs, 233 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 4470. Up to 1066 conditions per place. [2023-11-19 08:03:49,887 INFO L140 encePairwiseOnDemand]: 299/321 looper letters, 161 selfloop transitions, 76 changer transitions 24/293 dead transitions. [2023-11-19 08:03:49,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 293 transitions, 1810 flow [2023-11-19 08:03:49,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1170 transitions. [2023-11-19 08:03:49,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6074766355140186 [2023-11-19 08:03:49,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1170 transitions. [2023-11-19 08:03:49,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1170 transitions. [2023-11-19 08:03:49,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:49,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1170 transitions. [2023-11-19 08:03:49,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:49,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:49,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:49,904 INFO L175 Difference]: Start difference. First operand has 106 places, 143 transitions, 714 flow. Second operand 6 states and 1170 transitions. [2023-11-19 08:03:49,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 293 transitions, 1810 flow [2023-11-19 08:03:49,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 293 transitions, 1810 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:49,919 INFO L231 Difference]: Finished difference. Result has 114 places, 209 transitions, 1305 flow [2023-11-19 08:03:49,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1305, PETRI_PLACES=114, PETRI_TRANSITIONS=209} [2023-11-19 08:03:49,921 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 26 predicate places. [2023-11-19 08:03:49,921 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 209 transitions, 1305 flow [2023-11-19 08:03:49,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:49,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:49,922 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 08:03:49,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:03:49,923 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:49,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1295852495, now seen corresponding path program 1 times [2023-11-19 08:03:49,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982182413] [2023-11-19 08:03:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:49,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 08:03:50,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:50,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982182413] [2023-11-19 08:03:50,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982182413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:50,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:50,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:50,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359893582] [2023-11-19 08:03:50,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:50,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:50,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:50,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:50,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 321 [2023-11-19 08:03:50,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 209 transitions, 1305 flow. Second operand has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:50,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 321 [2023-11-19 08:03:50,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:50,421 INFO L124 PetriNetUnfolderBase]: 352/1089 cut-off events. [2023-11-19 08:03:50,421 INFO L125 PetriNetUnfolderBase]: For 1541/1615 co-relation queries the response was YES. [2023-11-19 08:03:50,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 1089 events. 352/1089 cut-off events. For 1541/1615 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6940 event pairs, 105 based on Foata normal form. 9/1047 useless extension candidates. Maximal degree in co-relation 3359. Up to 374 conditions per place. [2023-11-19 08:03:50,434 INFO L140 encePairwiseOnDemand]: 316/321 looper letters, 44 selfloop transitions, 4 changer transitions 0/216 dead transitions. [2023-11-19 08:03:50,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 216 transitions, 1416 flow [2023-11-19 08:03:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:50,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 766 transitions. [2023-11-19 08:03:50,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5965732087227414 [2023-11-19 08:03:50,439 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 766 transitions. [2023-11-19 08:03:50,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 766 transitions. [2023-11-19 08:03:50,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:50,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 766 transitions. [2023-11-19 08:03:50,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.5) internal successors, (766), 4 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,448 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,448 INFO L175 Difference]: Start difference. First operand has 114 places, 209 transitions, 1305 flow. Second operand 4 states and 766 transitions. [2023-11-19 08:03:50,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 216 transitions, 1416 flow [2023-11-19 08:03:50,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 216 transitions, 1319 flow, removed 48 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:50,476 INFO L231 Difference]: Finished difference. Result has 118 places, 212 transitions, 1235 flow [2023-11-19 08:03:50,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1235, PETRI_PLACES=118, PETRI_TRANSITIONS=212} [2023-11-19 08:03:50,478 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 30 predicate places. [2023-11-19 08:03:50,478 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 212 transitions, 1235 flow [2023-11-19 08:03:50,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:50,479 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:50,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:03:50,480 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:50,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1121267115, now seen corresponding path program 1 times [2023-11-19 08:03:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:50,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91524262] [2023-11-19 08:03:50,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:50,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 08:03:50,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:50,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91524262] [2023-11-19 08:03:50,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91524262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:50,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:50,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253391693] [2023-11-19 08:03:50,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:50,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:50,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:50,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:50,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:50,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 321 [2023-11-19 08:03:50,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 212 transitions, 1235 flow. Second operand has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:50,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:50,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 321 [2023-11-19 08:03:50,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:51,109 INFO L124 PetriNetUnfolderBase]: 419/1338 cut-off events. [2023-11-19 08:03:51,110 INFO L125 PetriNetUnfolderBase]: For 1778/1864 co-relation queries the response was YES. [2023-11-19 08:03:51,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4112 conditions, 1338 events. 419/1338 cut-off events. For 1778/1864 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9228 event pairs, 106 based on Foata normal form. 13/1298 useless extension candidates. Maximal degree in co-relation 4088. Up to 379 conditions per place. [2023-11-19 08:03:51,125 INFO L140 encePairwiseOnDemand]: 314/321 looper letters, 57 selfloop transitions, 6 changer transitions 0/230 dead transitions. [2023-11-19 08:03:51,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 230 transitions, 1411 flow [2023-11-19 08:03:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 776 transitions. [2023-11-19 08:03:51,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6043613707165109 [2023-11-19 08:03:51,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 776 transitions. [2023-11-19 08:03:51,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 776 transitions. [2023-11-19 08:03:51,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:51,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 776 transitions. [2023-11-19 08:03:51,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:51,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:51,137 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:51,137 INFO L175 Difference]: Start difference. First operand has 118 places, 212 transitions, 1235 flow. Second operand 4 states and 776 transitions. [2023-11-19 08:03:51,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 230 transitions, 1411 flow [2023-11-19 08:03:51,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 230 transitions, 1407 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:51,162 INFO L231 Difference]: Finished difference. Result has 122 places, 213 transitions, 1255 flow [2023-11-19 08:03:51,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1255, PETRI_PLACES=122, PETRI_TRANSITIONS=213} [2023-11-19 08:03:51,163 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 34 predicate places. [2023-11-19 08:03:51,163 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 213 transitions, 1255 flow [2023-11-19 08:03:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:51,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:51,164 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:51,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:03:51,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:51,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash -379787535, now seen corresponding path program 1 times [2023-11-19 08:03:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:51,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278235083] [2023-11-19 08:03:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:51,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278235083] [2023-11-19 08:03:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278235083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:51,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030909463] [2023-11-19 08:03:51,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:51,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:51,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:51,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:51,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:03:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:51,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:03:51,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:51,905 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:51,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:03:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030909463] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:03:52,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:03:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2023-11-19 08:03:52,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021121477] [2023-11-19 08:03:52,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:03:52,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:03:52,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:52,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:03:52,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:03:52,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 321 [2023-11-19 08:03:52,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 213 transitions, 1255 flow. Second operand has 14 states, 14 states have (on average 174.78571428571428) internal successors, (2447), 14 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:52,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:52,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 321 [2023-11-19 08:03:52,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:53,174 INFO L124 PetriNetUnfolderBase]: 494/1528 cut-off events. [2023-11-19 08:03:53,174 INFO L125 PetriNetUnfolderBase]: For 2223/2339 co-relation queries the response was YES. [2023-11-19 08:03:53,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4790 conditions, 1528 events. 494/1528 cut-off events. For 2223/2339 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 10768 event pairs, 90 based on Foata normal form. 26/1497 useless extension candidates. Maximal degree in co-relation 4764. Up to 389 conditions per place. [2023-11-19 08:03:53,195 INFO L140 encePairwiseOnDemand]: 306/321 looper letters, 81 selfloop transitions, 20 changer transitions 1/263 dead transitions. [2023-11-19 08:03:53,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 263 transitions, 1620 flow [2023-11-19 08:03:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 08:03:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2675 transitions. [2023-11-19 08:03:53,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-11-19 08:03:53,207 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2675 transitions. [2023-11-19 08:03:53,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2675 transitions. [2023-11-19 08:03:53,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:53,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2675 transitions. [2023-11-19 08:03:53,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 178.33333333333334) internal successors, (2675), 15 states have internal predecessors, (2675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:53,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 321.0) internal successors, (5136), 16 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:53,229 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 321.0) internal successors, (5136), 16 states have internal predecessors, (5136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:53,229 INFO L175 Difference]: Start difference. First operand has 122 places, 213 transitions, 1255 flow. Second operand 15 states and 2675 transitions. [2023-11-19 08:03:53,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 263 transitions, 1620 flow [2023-11-19 08:03:53,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 263 transitions, 1603 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:53,252 INFO L231 Difference]: Finished difference. Result has 139 places, 225 transitions, 1352 flow [2023-11-19 08:03:53,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1352, PETRI_PLACES=139, PETRI_TRANSITIONS=225} [2023-11-19 08:03:53,253 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 51 predicate places. [2023-11-19 08:03:53,253 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 225 transitions, 1352 flow [2023-11-19 08:03:53,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 174.78571428571428) internal successors, (2447), 14 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:53,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:53,263 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] [2023-11-19 08:03:53,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:53,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:53,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:53,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:53,484 INFO L85 PathProgramCache]: Analyzing trace with hash -110500092, now seen corresponding path program 1 times [2023-11-19 08:03:53,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:53,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229845373] [2023-11-19 08:03:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:53,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:53,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229845373] [2023-11-19 08:03:53,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229845373] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:53,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528055703] [2023-11-19 08:03:53,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:53,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:53,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:53,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:53,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:03:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:53,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:53,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:53,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:03:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:53,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528055703] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:03:53,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:03:53,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2023-11-19 08:03:53,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123569790] [2023-11-19 08:03:53,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:03:53,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:53,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:53,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:53,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:54,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 321 [2023-11-19 08:03:54,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 225 transitions, 1352 flow. Second operand has 9 states, 9 states have (on average 181.33333333333334) internal successors, (1632), 9 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:54,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:54,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 321 [2023-11-19 08:03:54,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:54,588 INFO L124 PetriNetUnfolderBase]: 309/1110 cut-off events. [2023-11-19 08:03:54,588 INFO L125 PetriNetUnfolderBase]: For 1496/1566 co-relation queries the response was YES. [2023-11-19 08:03:54,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3405 conditions, 1110 events. 309/1110 cut-off events. For 1496/1566 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7519 event pairs, 61 based on Foata normal form. 11/1104 useless extension candidates. Maximal degree in co-relation 3374. Up to 247 conditions per place. [2023-11-19 08:03:54,599 INFO L140 encePairwiseOnDemand]: 316/321 looper letters, 66 selfloop transitions, 4 changer transitions 0/225 dead transitions. [2023-11-19 08:03:54,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 225 transitions, 1428 flow [2023-11-19 08:03:54,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1122 transitions. [2023-11-19 08:03:54,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825545171339563 [2023-11-19 08:03:54,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1122 transitions. [2023-11-19 08:03:54,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1122 transitions. [2023-11-19 08:03:54,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:54,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1122 transitions. [2023-11-19 08:03:54,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:54,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:54,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:54,615 INFO L175 Difference]: Start difference. First operand has 139 places, 225 transitions, 1352 flow. Second operand 6 states and 1122 transitions. [2023-11-19 08:03:54,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 225 transitions, 1428 flow [2023-11-19 08:03:54,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 225 transitions, 1416 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:54,637 INFO L231 Difference]: Finished difference. Result has 134 places, 196 transitions, 1189 flow [2023-11-19 08:03:54,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1189, PETRI_PLACES=134, PETRI_TRANSITIONS=196} [2023-11-19 08:03:54,638 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 46 predicate places. [2023-11-19 08:03:54,639 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 196 transitions, 1189 flow [2023-11-19 08:03:54,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 181.33333333333334) internal successors, (1632), 9 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:54,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:54,640 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] [2023-11-19 08:03:54,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:54,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0e2bcd2-8fdf-43c4-b085-ecc1c845a71a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:54,869 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:54,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash -168100446, now seen corresponding path program 1 times [2023-11-19 08:03:54,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494102298] [2023-11-19 08:03:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:55,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:55,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494102298] [2023-11-19 08:03:55,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494102298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:55,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:55,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:03:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68947569] [2023-11-19 08:03:55,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:55,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:03:55,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:03:55,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:03:55,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 321 [2023-11-19 08:03:55,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 196 transitions, 1189 flow. Second operand has 8 states, 8 states have (on average 172.25) internal successors, (1378), 8 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:55,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 321 [2023-11-19 08:03:55,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:55,931 INFO L124 PetriNetUnfolderBase]: 328/1051 cut-off events. [2023-11-19 08:03:55,931 INFO L125 PetriNetUnfolderBase]: For 1590/1680 co-relation queries the response was YES. [2023-11-19 08:03:55,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 1051 events. 328/1051 cut-off events. For 1590/1680 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6662 event pairs, 68 based on Foata normal form. 27/1062 useless extension candidates. Maximal degree in co-relation 3339. Up to 267 conditions per place. [2023-11-19 08:03:55,945 INFO L140 encePairwiseOnDemand]: 310/321 looper letters, 61 selfloop transitions, 15 changer transitions 0/217 dead transitions. [2023-11-19 08:03:55,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 217 transitions, 1410 flow [2023-11-19 08:03:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:03:55,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 08:03:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1926 transitions. [2023-11-19 08:03:55,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2023-11-19 08:03:55,953 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1926 transitions. [2023-11-19 08:03:55,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1926 transitions. [2023-11-19 08:03:55,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:55,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1926 transitions. [2023-11-19 08:03:55,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.0909090909091) internal successors, (1926), 11 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 321.0) internal successors, (3852), 12 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,969 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 321.0) internal successors, (3852), 12 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,969 INFO L175 Difference]: Start difference. First operand has 134 places, 196 transitions, 1189 flow. Second operand 11 states and 1926 transitions. [2023-11-19 08:03:55,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 217 transitions, 1410 flow [2023-11-19 08:03:55,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 217 transitions, 1395 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-19 08:03:55,992 INFO L231 Difference]: Finished difference. Result has 144 places, 198 transitions, 1246 flow [2023-11-19 08:03:55,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1246, PETRI_PLACES=144, PETRI_TRANSITIONS=198} [2023-11-19 08:03:55,994 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 56 predicate places. [2023-11-19 08:03:55,994 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 198 transitions, 1246 flow [2023-11-19 08:03:55,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 172.25) internal successors, (1378), 8 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:55,995 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:55,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 08:03:55,995 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-19 08:03:55,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash 929667703, now seen corresponding path program 1 times [2023-11-19 08:03:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:55,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350319021] [2023-11-19 08:03:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:56,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:56,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:56,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:03:56,113 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-11-19 08:03:56,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-11-19 08:03:56,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-11-19 08:03:56,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-11-19 08:03:56,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-11-19 08:03:56,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-11-19 08:03:56,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-11-19 08:03:56,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-11-19 08:03:56,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-11-19 08:03:56,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-11-19 08:03:56,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-11-19 08:03:56,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-11-19 08:03:56,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-11-19 08:03:56,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-11-19 08:03:56,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-11-19 08:03:56,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-11-19 08:03:56,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-11-19 08:03:56,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-11-19 08:03:56,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 08:03:56,120 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:56,123 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 08:03:56,123 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 08:03:56,176 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:03:56,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,261 INFO L124 PetriNetUnfolderBase]: 27/477 cut-off events. [2023-11-19 08:03:56,261 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 08:03:56,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 477 events. 27/477 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1209 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 286. Up to 9 conditions per place. [2023-11-19 08:03:56,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,269 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:56,269 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,269 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 246 transitions, 508 flow [2023-11-19 08:03:56,346 INFO L124 PetriNetUnfolderBase]: 27/477 cut-off events. [2023-11-19 08:03:56,347 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 08:03:56,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 477 events. 27/477 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1209 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 286. Up to 9 conditions per place. [2023-11-19 08:03:56,371 INFO L119 LiptonReduction]: Number of co-enabled transitions 24096 [2023-11-19 08:04:01,571 INFO L134 LiptonReduction]: Checked pairs total: 155686 [2023-11-19 08:04:01,573 INFO L136 LiptonReduction]: Total number of compositions: 144 [2023-11-19 08:04:01,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:01,576 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=LoopHeads, 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;@1ff8d8a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:01,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-19 08:04:01,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:04:01,578 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:04:01,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:01,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:01,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:04:01,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 08:04:01,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1086, now seen corresponding path program 1 times [2023-11-19 08:04:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:01,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377902013] [2023-11-19 08:04:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:01,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:01,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377902013] [2023-11-19 08:04:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377902013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:01,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:01,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:04:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851895724] [2023-11-19 08:04:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:01,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:04:01,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:01,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:04:01,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:01,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 390 [2023-11-19 08:04:01,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 121 transitions, 258 flow. Second operand has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:01,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:01,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 390 [2023-11-19 08:04:01,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:03,475 INFO L124 PetriNetUnfolderBase]: 6431/13277 cut-off events. [2023-11-19 08:04:03,475 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2023-11-19 08:04:03,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22770 conditions, 13277 events. 6431/13277 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 109853 event pairs, 5504 based on Foata normal form. 0/11861 useless extension candidates. Maximal degree in co-relation 21351. Up to 9417 conditions per place. [2023-11-19 08:04:03,689 INFO L140 encePairwiseOnDemand]: 389/390 looper letters, 49 selfloop transitions, 0 changer transitions 0/120 dead transitions. [2023-11-19 08:04:03,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 354 flow [2023-11-19 08:04:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:04:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 526 transitions. [2023-11-19 08:04:03,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6743589743589744 [2023-11-19 08:04:03,694 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 526 transitions. [2023-11-19 08:04:03,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 526 transitions. [2023-11-19 08:04:03,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:03,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 526 transitions. [2023-11-19 08:04:03,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 263.0) internal successors, (526), 2 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:03,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:03,699 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:03,700 INFO L175 Difference]: Start difference. First operand has 118 places, 121 transitions, 258 flow. Second operand 2 states and 526 transitions. [2023-11-19 08:04:03,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 354 flow [2023-11-19 08:04:03,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:04:03,704 INFO L231 Difference]: Finished difference. Result has 118 places, 120 transitions, 256 flow [2023-11-19 08:04:03,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2023-11-19 08:04:03,705 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2023-11-19 08:04:03,705 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 256 flow [2023-11-19 08:04:03,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:03,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:03,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 08:04:03,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 08:04:03,707 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 08:04:03,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:03,707 INFO L85 PathProgramCache]: Analyzing trace with hash 33302943, now seen corresponding path program 1 times [2023-11-19 08:04:03,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:03,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584904648] [2023-11-19 08:04:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:03,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:03,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584904648] [2023-11-19 08:04:03,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584904648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:03,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:03,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212856196] [2023-11-19 08:04:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:03,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:03,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:03,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 390 [2023-11-19 08:04:03,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:03,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:03,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 390 [2023-11-19 08:04:03,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:06,729 INFO L124 PetriNetUnfolderBase]: 12313/24904 cut-off events. [2023-11-19 08:04:06,730 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2023-11-19 08:04:06,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43036 conditions, 24904 events. 12313/24904 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 231606 event pairs, 4533 based on Foata normal form. 0/21440 useless extension candidates. Maximal degree in co-relation 43031. Up to 9319 conditions per place. [2023-11-19 08:04:06,894 INFO L140 encePairwiseOnDemand]: 375/390 looper letters, 91 selfloop transitions, 11 changer transitions 0/168 dead transitions. [2023-11-19 08:04:06,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 168 transitions, 567 flow [2023-11-19 08:04:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:06,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:04:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 775 transitions. [2023-11-19 08:04:06,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6623931623931624 [2023-11-19 08:04:06,899 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 775 transitions. [2023-11-19 08:04:06,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 775 transitions. [2023-11-19 08:04:06,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:06,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 775 transitions. [2023-11-19 08:04:06,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:06,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:06,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:06,906 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 256 flow. Second operand 3 states and 775 transitions. [2023-11-19 08:04:06,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 168 transitions, 567 flow [2023-11-19 08:04:06,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 168 transitions, 567 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:04:06,912 INFO L231 Difference]: Finished difference. Result has 122 places, 131 transitions, 352 flow [2023-11-19 08:04:06,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=122, PETRI_TRANSITIONS=131} [2023-11-19 08:04:06,913 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2023-11-19 08:04:06,913 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 131 transitions, 352 flow [2023-11-19 08:04:06,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:06,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:06,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:06,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 08:04:06,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 08:04:06,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2125514036, now seen corresponding path program 1 times [2023-11-19 08:04:06,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:06,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063334516] [2023-11-19 08:04:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:07,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063334516] [2023-11-19 08:04:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063334516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:07,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:07,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251576230] [2023-11-19 08:04:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:07,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:07,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:07,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 390 [2023-11-19 08:04:07,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 131 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:07,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:07,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 390 [2023-11-19 08:04:07,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:15,597 INFO L124 PetriNetUnfolderBase]: 38078/68376 cut-off events. [2023-11-19 08:04:15,597 INFO L125 PetriNetUnfolderBase]: For 17517/19291 co-relation queries the response was YES. [2023-11-19 08:04:15,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140671 conditions, 68376 events. 38078/68376 cut-off events. For 17517/19291 co-relation queries the response was YES. Maximal size of possible extension queue 1850. Compared 625540 event pairs, 15007 based on Foata normal form. 235/61652 useless extension candidates. Maximal degree in co-relation 140664. Up to 27640 conditions per place. [2023-11-19 08:04:16,151 INFO L140 encePairwiseOnDemand]: 363/390 looper letters, 231 selfloop transitions, 48 changer transitions 0/328 dead transitions. [2023-11-19 08:04:16,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 328 transitions, 1459 flow [2023-11-19 08:04:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:04:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1498 transitions. [2023-11-19 08:04:16,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6401709401709401 [2023-11-19 08:04:16,163 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1498 transitions. [2023-11-19 08:04:16,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1498 transitions. [2023-11-19 08:04:16,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:16,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1498 transitions. [2023-11-19 08:04:16,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:16,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:16,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:16,174 INFO L175 Difference]: Start difference. First operand has 122 places, 131 transitions, 352 flow. Second operand 6 states and 1498 transitions. [2023-11-19 08:04:16,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 328 transitions, 1459 flow [2023-11-19 08:04:16,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 328 transitions, 1387 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:04:16,220 INFO L231 Difference]: Finished difference. Result has 130 places, 179 transitions, 672 flow [2023-11-19 08:04:16,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=672, PETRI_PLACES=130, PETRI_TRANSITIONS=179} [2023-11-19 08:04:16,221 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 12 predicate places. [2023-11-19 08:04:16,221 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 179 transitions, 672 flow [2023-11-19 08:04:16,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.33333333333334) internal successors, (1256), 6 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:16,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:16,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:16,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 08:04:16,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 08:04:16,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:16,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1925923458, now seen corresponding path program 1 times [2023-11-19 08:04:16,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:16,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252842295] [2023-11-19 08:04:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:16,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:16,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:16,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252842295] [2023-11-19 08:04:16,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252842295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:16,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:16,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:16,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441383044] [2023-11-19 08:04:16,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:16,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:16,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:16,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:16,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:16,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 390 [2023-11-19 08:04:16,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 179 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:16,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:16,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 390 [2023-11-19 08:04:16,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand