./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:33,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:33,304 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:02:33,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:33,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:33,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:33,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:33,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:33,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:33,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:33,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:33,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:33,343 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:33,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:33,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:33,344 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:33,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:33,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:33,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:33,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:33,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:33,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:33,348 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:02:33,349 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:02:33,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:33,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:33,350 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:33,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:33,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:33,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:33,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:33,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:33,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:33,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:33,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:33,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:33,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:33,361 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:33,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:33,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:33,374 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:33,374 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_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2023-11-06 22:02:33,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:33,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:33,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:33,708 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:33,709 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:33,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-06 22:02:36,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:37,268 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:37,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-06 22:02:37,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/data/e5ee7d408/a2a38f671b8446d4a2043f22b357c798/FLAGc555d6d0f [2023-11-06 22:02:37,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/data/e5ee7d408/a2a38f671b8446d4a2043f22b357c798 [2023-11-06 22:02:37,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:37,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:37,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:37,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:37,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:37,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:37" (1/1) ... [2023-11-06 22:02:37,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f07c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:37, skipping insertion in model container [2023-11-06 22:02:37,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:37" (1/1) ... [2023-11-06 22:02:37,450 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:37,620 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:02:38,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:38,472 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:38,486 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:02:38,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:38,800 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:38,801 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:38,801 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:38,808 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:38,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38 WrapperNode [2023-11-06 22:02:38,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:38,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:38,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:38,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:38,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,930 INFO L138 Inliner]: procedures = 468, calls = 49, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 186 [2023-11-06 22:02:38,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:38,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:38,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:38,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:38,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:38,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:39,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:39,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:39,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:39,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:39,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (1/1) ... [2023-11-06 22:02:39,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:39,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:39,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ff9d4a-0faf-453d-bcb4-d21d66187208/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:39,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:02:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:02:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:02:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:02:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:39,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:02:39,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-06 22:02:39,118 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-06 22:02:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:02:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:39,120 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:02:39,462 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:39,464 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:40,017 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:40,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:40,085 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:02:40,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:40 BoogieIcfgContainer [2023-11-06 22:02:40,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:40,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:40,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:40,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:40,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:37" (1/3) ... [2023-11-06 22:02:40,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca6548c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:40, skipping insertion in model container [2023-11-06 22:02:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:38" (2/3) ... [2023-11-06 22:02:40,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca6548c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:40, skipping insertion in model container [2023-11-06 22:02:40,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:40" (3/3) ... [2023-11-06 22:02:40,104 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-06 22:02:40,111 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:02:40,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:40,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-06 22:02:40,119 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:02:40,219 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:02:40,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 255 transitions, 524 flow [2023-11-06 22:02:40,413 INFO L124 PetriNetUnfolderBase]: 14/343 cut-off events. [2023-11-06 22:02:40,413 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:02:40,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 14/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 720 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 172. Up to 4 conditions per place. [2023-11-06 22:02:40,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 255 transitions, 524 flow [2023-11-06 22:02:40,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 252 transitions, 516 flow [2023-11-06 22:02:40,434 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:02:40,458 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 252 transitions, 516 flow [2023-11-06 22:02:40,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 252 transitions, 516 flow [2023-11-06 22:02:40,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 252 transitions, 516 flow [2023-11-06 22:02:40,557 INFO L124 PetriNetUnfolderBase]: 13/342 cut-off events. [2023-11-06 22:02:40,557 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:02:40,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 342 events. 13/342 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 727 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 171. Up to 4 conditions per place. [2023-11-06 22:02:40,568 INFO L119 LiptonReduction]: Number of co-enabled transitions 7008 [2023-11-06 22:03:13,122 WARN L293 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:03:18,753 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:03:50,043 INFO L134 LiptonReduction]: Checked pairs total: 28475 [2023-11-06 22:03:50,043 INFO L136 LiptonReduction]: Total number of compositions: 262 [2023-11-06 22:03:50,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:03:50,072 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d6cab4e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:03:50,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-06 22:03:50,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:03:50,074 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:03:50,075 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:50,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:50,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:03:50,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:50,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:50,084 INFO L85 PathProgramCache]: Analyzing trace with hash 894, now seen corresponding path program 1 times [2023-11-06 22:03:50,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:50,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284680434] [2023-11-06 22:03:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:50,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:50,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:50,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284680434] [2023-11-06 22:03:50,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284680434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:50,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:50,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:03:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737717157] [2023-11-06 22:03:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:50,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:03:50,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:03:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:03:50,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 517 [2023-11-06 22:03:50,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 154 flow. Second operand has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:50,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:50,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 517 [2023-11-06 22:03:50,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:51,015 INFO L124 PetriNetUnfolderBase]: 241/759 cut-off events. [2023-11-06 22:03:51,016 INFO L125 PetriNetUnfolderBase]: For 18/30 co-relation queries the response was YES. [2023-11-06 22:03:51,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 759 events. 241/759 cut-off events. For 18/30 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4205 event pairs, 240 based on Foata normal form. 34/730 useless extension candidates. Maximal degree in co-relation 1080. Up to 433 conditions per place. [2023-11-06 22:03:51,033 INFO L140 encePairwiseOnDemand]: 505/517 looper letters, 24 selfloop transitions, 0 changer transitions 1/58 dead transitions. [2023-11-06 22:03:51,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 178 flow [2023-11-06 22:03:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:03:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:03:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 491 transitions. [2023-11-06 22:03:51,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748549323017408 [2023-11-06 22:03:51,069 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 491 transitions. [2023-11-06 22:03:51,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 491 transitions. [2023-11-06 22:03:51,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:51,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 491 transitions. [2023-11-06 22:03:51,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:51,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 517.0) internal successors, (1551), 3 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:51,100 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 517.0) internal successors, (1551), 3 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:51,102 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 154 flow. Second operand 2 states and 491 transitions. [2023-11-06 22:03:51,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 178 flow [2023-11-06 22:03:51,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 58 transitions, 170 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:03:51,113 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 118 flow [2023-11-06 22:03:51,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2023-11-06 22:03:51,125 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -14 predicate places. [2023-11-06 22:03:51,125 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 118 flow [2023-11-06 22:03:51,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:51,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:51,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:51,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:03:51,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:51,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2012831115, now seen corresponding path program 1 times [2023-11-06 22:03:51,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:51,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720448281] [2023-11-06 22:03:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:51,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:51,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:51,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720448281] [2023-11-06 22:03:51,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720448281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:51,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:51,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886454235] [2023-11-06 22:03:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:51,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:51,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:52,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:52,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:52,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 517 [2023-11-06 22:03:52,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:52,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:52,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 517 [2023-11-06 22:03:52,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:53,780 INFO L124 PetriNetUnfolderBase]: 673/1395 cut-off events. [2023-11-06 22:03:53,781 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-06 22:03:53,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 1395 events. 673/1395 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6953 event pairs, 474 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2574. Up to 1074 conditions per place. [2023-11-06 22:03:53,793 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 40 selfloop transitions, 31 changer transitions 0/86 dead transitions. [2023-11-06 22:03:53,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 318 flow [2023-11-06 22:03:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:03:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1200 transitions. [2023-11-06 22:03:53,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38684719535783363 [2023-11-06 22:03:53,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1200 transitions. [2023-11-06 22:03:53,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1200 transitions. [2023-11-06 22:03:53,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:53,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1200 transitions. [2023-11-06 22:03:53,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.0) internal successors, (1200), 6 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:53,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:53,824 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:53,824 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 118 flow. Second operand 6 states and 1200 transitions. [2023-11-06 22:03:53,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 318 flow [2023-11-06 22:03:53,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 318 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:03:53,829 INFO L231 Difference]: Finished difference. Result has 69 places, 86 transitions, 324 flow [2023-11-06 22:03:53,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=69, PETRI_TRANSITIONS=86} [2023-11-06 22:03:53,830 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2023-11-06 22:03:53,831 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 86 transitions, 324 flow [2023-11-06 22:03:53,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:53,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:53,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:53,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:03:53,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:53,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash -864844596, now seen corresponding path program 1 times [2023-11-06 22:03:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081054040] [2023-11-06 22:03:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:53,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:53,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:53,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081054040] [2023-11-06 22:03:53,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081054040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:53,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:53,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822101978] [2023-11-06 22:03:53,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:53,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:54,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 517 [2023-11-06 22:03:54,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 86 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:54,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:54,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 517 [2023-11-06 22:03:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:54,625 INFO L124 PetriNetUnfolderBase]: 446/1167 cut-off events. [2023-11-06 22:03:54,625 INFO L125 PetriNetUnfolderBase]: For 515/515 co-relation queries the response was YES. [2023-11-06 22:03:54,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2698 conditions, 1167 events. 446/1167 cut-off events. For 515/515 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6474 event pairs, 261 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 2690. Up to 634 conditions per place. [2023-11-06 22:03:54,639 INFO L140 encePairwiseOnDemand]: 515/517 looper letters, 54 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2023-11-06 22:03:54,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 92 transitions, 450 flow [2023-11-06 22:03:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2023-11-06 22:03:54,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44745325596389424 [2023-11-06 22:03:54,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 694 transitions. [2023-11-06 22:03:54,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 694 transitions. [2023-11-06 22:03:54,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:54,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 694 transitions. [2023-11-06 22:03:54,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:54,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 517.0) internal successors, (2068), 4 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:54,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 517.0) internal successors, (2068), 4 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:54,657 INFO L175 Difference]: Start difference. First operand has 69 places, 86 transitions, 324 flow. Second operand 3 states and 694 transitions. [2023-11-06 22:03:54,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 92 transitions, 450 flow [2023-11-06 22:03:54,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 92 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:03:54,666 INFO L231 Difference]: Finished difference. Result has 72 places, 86 transitions, 329 flow [2023-11-06 22:03:54,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=72, PETRI_TRANSITIONS=86} [2023-11-06 22:03:54,667 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-11-06 22:03:54,668 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 86 transitions, 329 flow [2023-11-06 22:03:54,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:54,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:54,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:54,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:03:54,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:54,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:54,670 INFO L85 PathProgramCache]: Analyzing trace with hash -399058505, now seen corresponding path program 1 times [2023-11-06 22:03:54,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:54,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480335828] [2023-11-06 22:03:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:54,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:55,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:55,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480335828] [2023-11-06 22:03:55,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480335828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:55,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:55,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:55,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69903105] [2023-11-06 22:03:55,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:55,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:55,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:55,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:55,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 517 [2023-11-06 22:03:55,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 86 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:55,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:55,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 517 [2023-11-06 22:03:55,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:57,154 INFO L124 PetriNetUnfolderBase]: 765/1614 cut-off events. [2023-11-06 22:03:57,155 INFO L125 PetriNetUnfolderBase]: For 619/620 co-relation queries the response was YES. [2023-11-06 22:03:57,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4167 conditions, 1614 events. 765/1614 cut-off events. For 619/620 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8428 event pairs, 399 based on Foata normal form. 1/1575 useless extension candidates. Maximal degree in co-relation 4157. Up to 1159 conditions per place. [2023-11-06 22:03:57,169 INFO L140 encePairwiseOnDemand]: 506/517 looper letters, 76 selfloop transitions, 22 changer transitions 0/119 dead transitions. [2023-11-06 22:03:57,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 119 transitions, 645 flow [2023-11-06 22:03:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:03:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-11-06 22:03:57,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174725983236622 [2023-11-06 22:03:57,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-11-06 22:03:57,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-11-06 22:03:57,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:57,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-11-06 22:03:57,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,194 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,195 INFO L175 Difference]: Start difference. First operand has 72 places, 86 transitions, 329 flow. Second operand 6 states and 1295 transitions. [2023-11-06 22:03:57,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 119 transitions, 645 flow [2023-11-06 22:03:57,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 119 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:03:57,204 INFO L231 Difference]: Finished difference. Result has 81 places, 107 transitions, 514 flow [2023-11-06 22:03:57,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=81, PETRI_TRANSITIONS=107} [2023-11-06 22:03:57,207 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-11-06 22:03:57,207 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 107 transitions, 514 flow [2023-11-06 22:03:57,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:57,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:57,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:03:57,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:57,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash -472266174, now seen corresponding path program 1 times [2023-11-06 22:03:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:57,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356188264] [2023-11-06 22:03:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:57,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:57,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:57,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356188264] [2023-11-06 22:03:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356188264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:57,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:03:57,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865668866] [2023-11-06 22:03:57,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:57,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:57,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 517 [2023-11-06 22:03:57,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 107 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:57,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 517 [2023-11-06 22:03:57,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:57,759 INFO L124 PetriNetUnfolderBase]: 235/579 cut-off events. [2023-11-06 22:03:57,759 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2023-11-06 22:03:57,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 579 events. 235/579 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2590 event pairs, 18 based on Foata normal form. 16/585 useless extension candidates. Maximal degree in co-relation 1764. Up to 313 conditions per place. [2023-11-06 22:03:57,767 INFO L140 encePairwiseOnDemand]: 515/517 looper letters, 51 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-11-06 22:03:57,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 88 transitions, 494 flow [2023-11-06 22:03:57,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2023-11-06 22:03:57,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44874274661508706 [2023-11-06 22:03:57,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2023-11-06 22:03:57,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2023-11-06 22:03:57,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:57,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2023-11-06 22:03:57,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 517.0) internal successors, (2068), 4 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 517.0) internal successors, (2068), 4 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,783 INFO L175 Difference]: Start difference. First operand has 81 places, 107 transitions, 514 flow. Second operand 3 states and 696 transitions. [2023-11-06 22:03:57,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 88 transitions, 494 flow [2023-11-06 22:03:57,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 88 transitions, 465 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-11-06 22:03:57,791 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 323 flow [2023-11-06 22:03:57,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2023-11-06 22:03:57,794 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2023-11-06 22:03:57,795 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 323 flow [2023-11-06 22:03:57,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:57,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:57,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:57,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:03:57,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:03:57,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash 525019701, now seen corresponding path program 1 times [2023-11-06 22:03:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:57,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289943948] [2023-11-06 22:03:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:58,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:58,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289943948] [2023-11-06 22:03:58,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289943948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:58,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:58,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:03:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751928586] [2023-11-06 22:03:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:58,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:03:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:03:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:04:00,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 517 [2023-11-06 22:04:00,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 323 flow. Second operand has 10 states, 10 states have (on average 197.2) internal successors, (1972), 10 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:00,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:00,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 517 [2023-11-06 22:04:00,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:02,020 INFO L124 PetriNetUnfolderBase]: 359/731 cut-off events. [2023-11-06 22:04:02,020 INFO L125 PetriNetUnfolderBase]: For 653/654 co-relation queries the response was YES. [2023-11-06 22:04:02,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 731 events. 359/731 cut-off events. For 653/654 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3081 event pairs, 18 based on Foata normal form. 9/731 useless extension candidates. Maximal degree in co-relation 2430. Up to 397 conditions per place. [2023-11-06 22:04:02,028 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 64 selfloop transitions, 36 changer transitions 0/119 dead transitions. [2023-11-06 22:04:02,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 119 transitions, 704 flow [2023-11-06 22:04:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:04:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:04:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1849 transitions. [2023-11-06 22:04:02,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.397378035675908 [2023-11-06 22:04:02,038 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1849 transitions. [2023-11-06 22:04:02,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1849 transitions. [2023-11-06 22:04:02,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:02,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1849 transitions. [2023-11-06 22:04:02,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 205.44444444444446) internal successors, (1849), 9 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:02,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 517.0) internal successors, (5170), 10 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:02,057 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 517.0) internal successors, (5170), 10 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:02,057 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 323 flow. Second operand 9 states and 1849 transitions. [2023-11-06 22:04:02,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 119 transitions, 704 flow [2023-11-06 22:04:02,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 119 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:04:02,064 INFO L231 Difference]: Finished difference. Result has 86 places, 96 transitions, 591 flow [2023-11-06 22:04:02,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=591, PETRI_PLACES=86, PETRI_TRANSITIONS=96} [2023-11-06 22:04:02,065 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 12 predicate places. [2023-11-06 22:04:02,065 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 96 transitions, 591 flow [2023-11-06 22:04:02,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 197.2) internal successors, (1972), 10 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:02,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:02,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:02,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:04:02,068 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:02,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash 514100478, now seen corresponding path program 1 times [2023-11-06 22:04:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:02,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185286356] [2023-11-06 22:04:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:02,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:02,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185286356] [2023-11-06 22:04:02,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185286356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:02,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:02,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:04:02,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774563979] [2023-11-06 22:04:02,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:02,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:04:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:02,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:04:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:04:04,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 517 [2023-11-06 22:04:04,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 96 transitions, 591 flow. Second operand has 10 states, 10 states have (on average 197.2) internal successors, (1972), 10 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:04,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:04,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 517 [2023-11-06 22:04:04,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:06,051 INFO L124 PetriNetUnfolderBase]: 405/823 cut-off events. [2023-11-06 22:04:06,052 INFO L125 PetriNetUnfolderBase]: For 1558/1559 co-relation queries the response was YES. [2023-11-06 22:04:06,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3365 conditions, 823 events. 405/823 cut-off events. For 1558/1559 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3626 event pairs, 30 based on Foata normal form. 9/821 useless extension candidates. Maximal degree in co-relation 3348. Up to 449 conditions per place. [2023-11-06 22:04:06,064 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 82 selfloop transitions, 37 changer transitions 0/138 dead transitions. [2023-11-06 22:04:06,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 138 transitions, 1036 flow [2023-11-06 22:04:06,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:04:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:04:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1852 transitions. [2023-11-06 22:04:06,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3980227810015044 [2023-11-06 22:04:06,076 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1852 transitions. [2023-11-06 22:04:06,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1852 transitions. [2023-11-06 22:04:06,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:06,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1852 transitions. [2023-11-06 22:04:06,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 205.77777777777777) internal successors, (1852), 9 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:06,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 517.0) internal successors, (5170), 10 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:06,099 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 517.0) internal successors, (5170), 10 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:06,099 INFO L175 Difference]: Start difference. First operand has 86 places, 96 transitions, 591 flow. Second operand 9 states and 1852 transitions. [2023-11-06 22:04:06,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 138 transitions, 1036 flow [2023-11-06 22:04:06,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 138 transitions, 1021 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-11-06 22:04:06,113 INFO L231 Difference]: Finished difference. Result has 97 places, 114 transitions, 867 flow [2023-11-06 22:04:06,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=867, PETRI_PLACES=97, PETRI_TRANSITIONS=114} [2023-11-06 22:04:06,115 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 23 predicate places. [2023-11-06 22:04:06,115 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 114 transitions, 867 flow [2023-11-06 22:04:06,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 197.2) internal successors, (1972), 10 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:06,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:06,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:06,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:04:06,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:06,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:06,118 INFO L85 PathProgramCache]: Analyzing trace with hash -904246208, now seen corresponding path program 1 times [2023-11-06 22:04:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321906459] [2023-11-06 22:04:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:07,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:07,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321906459] [2023-11-06 22:04:07,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321906459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:07,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:07,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:07,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84199640] [2023-11-06 22:04:07,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:07,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:07,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:07,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:08,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 517 [2023-11-06 22:04:08,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 114 transitions, 867 flow. Second operand has 11 states, 11 states have (on average 202.1818181818182) internal successors, (2224), 11 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:08,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:08,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 517 [2023-11-06 22:04:08,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:10,695 INFO L124 PetriNetUnfolderBase]: 397/811 cut-off events. [2023-11-06 22:04:10,695 INFO L125 PetriNetUnfolderBase]: For 2731/2732 co-relation queries the response was YES. [2023-11-06 22:04:10,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 811 events. 397/811 cut-off events. For 2731/2732 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3547 event pairs, 17 based on Foata normal form. 5/805 useless extension candidates. Maximal degree in co-relation 3810. Up to 441 conditions per place. [2023-11-06 22:04:10,708 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 80 selfloop transitions, 51 changer transitions 0/150 dead transitions. [2023-11-06 22:04:10,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 150 transitions, 1320 flow [2023-11-06 22:04:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:04:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:04:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2098 transitions. [2023-11-06 22:04:10,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4058027079303675 [2023-11-06 22:04:10,720 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2098 transitions. [2023-11-06 22:04:10,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2098 transitions. [2023-11-06 22:04:10,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:10,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2098 transitions. [2023-11-06 22:04:10,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 209.8) internal successors, (2098), 10 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:10,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 517.0) internal successors, (5687), 11 states have internal predecessors, (5687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:10,746 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 517.0) internal successors, (5687), 11 states have internal predecessors, (5687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:10,747 INFO L175 Difference]: Start difference. First operand has 97 places, 114 transitions, 867 flow. Second operand 10 states and 2098 transitions. [2023-11-06 22:04:10,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 150 transitions, 1320 flow [2023-11-06 22:04:10,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 150 transitions, 1317 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:04:10,766 INFO L231 Difference]: Finished difference. Result has 109 places, 126 transitions, 1187 flow [2023-11-06 22:04:10,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1187, PETRI_PLACES=109, PETRI_TRANSITIONS=126} [2023-11-06 22:04:10,768 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 35 predicate places. [2023-11-06 22:04:10,768 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 126 transitions, 1187 flow [2023-11-06 22:04:10,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 202.1818181818182) internal successors, (2224), 11 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:10,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:10,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:10,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:04:10,771 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:10,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:10,772 INFO L85 PathProgramCache]: Analyzing trace with hash -564286682, now seen corresponding path program 1 times [2023-11-06 22:04:10,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:10,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645072440] [2023-11-06 22:04:10,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:11,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:11,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645072440] [2023-11-06 22:04:11,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645072440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:11,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:11,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:11,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961230375] [2023-11-06 22:04:11,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:11,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:11,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:11,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:11,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:11,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 517 [2023-11-06 22:04:11,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 126 transitions, 1187 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:11,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:11,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 517 [2023-11-06 22:04:11,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:12,428 INFO L124 PetriNetUnfolderBase]: 405/823 cut-off events. [2023-11-06 22:04:12,429 INFO L125 PetriNetUnfolderBase]: For 4956/4956 co-relation queries the response was YES. [2023-11-06 22:04:12,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 823 events. 405/823 cut-off events. For 4956/4956 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3637 event pairs, 134 based on Foata normal form. 0/813 useless extension candidates. Maximal degree in co-relation 4481. Up to 736 conditions per place. [2023-11-06 22:04:12,442 INFO L140 encePairwiseOnDemand]: 511/517 looper letters, 101 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2023-11-06 22:04:12,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 125 transitions, 1397 flow [2023-11-06 22:04:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1169 transitions. [2023-11-06 22:04:12,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37685364281108963 [2023-11-06 22:04:12,451 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1169 transitions. [2023-11-06 22:04:12,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1169 transitions. [2023-11-06 22:04:12,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:12,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1169 transitions. [2023-11-06 22:04:12,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:12,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:12,467 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 517.0) internal successors, (3619), 7 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:12,467 INFO L175 Difference]: Start difference. First operand has 109 places, 126 transitions, 1187 flow. Second operand 6 states and 1169 transitions. [2023-11-06 22:04:12,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 125 transitions, 1397 flow [2023-11-06 22:04:12,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 125 transitions, 1374 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:12,497 INFO L231 Difference]: Finished difference. Result has 109 places, 125 transitions, 1172 flow [2023-11-06 22:04:12,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1172, PETRI_PLACES=109, PETRI_TRANSITIONS=125} [2023-11-06 22:04:12,498 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 35 predicate places. [2023-11-06 22:04:12,498 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 125 transitions, 1172 flow [2023-11-06 22:04:12,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:12,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:12,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:12,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:04:12,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:12,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash 732567815, now seen corresponding path program 1 times [2023-11-06 22:04:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:12,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937540932] [2023-11-06 22:04:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:12,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:13,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937540932] [2023-11-06 22:04:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937540932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:13,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:13,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:04:13,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717027528] [2023-11-06 22:04:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:13,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:04:13,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:04:13,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:04:14,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:14,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 125 transitions, 1172 flow. Second operand has 10 states, 10 states have (on average 195.4) internal successors, (1954), 10 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:14,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:14,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:14,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:16,059 INFO L124 PetriNetUnfolderBase]: 415/862 cut-off events. [2023-11-06 22:04:16,059 INFO L125 PetriNetUnfolderBase]: For 4526/4527 co-relation queries the response was YES. [2023-11-06 22:04:16,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4585 conditions, 862 events. 415/862 cut-off events. For 4526/4527 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3990 event pairs, 19 based on Foata normal form. 5/857 useless extension candidates. Maximal degree in co-relation 4558. Up to 461 conditions per place. [2023-11-06 22:04:16,069 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 133 selfloop transitions, 52 changer transitions 0/203 dead transitions. [2023-11-06 22:04:16,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 203 transitions, 2237 flow [2023-11-06 22:04:16,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:04:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:04:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2429 transitions. [2023-11-06 22:04:16,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3915215989684075 [2023-11-06 22:04:16,084 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2429 transitions. [2023-11-06 22:04:16,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2429 transitions. [2023-11-06 22:04:16,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:16,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2429 transitions. [2023-11-06 22:04:16,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 202.41666666666666) internal successors, (2429), 12 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:16,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:16,109 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:16,109 INFO L175 Difference]: Start difference. First operand has 109 places, 125 transitions, 1172 flow. Second operand 12 states and 2429 transitions. [2023-11-06 22:04:16,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 203 transitions, 2237 flow [2023-11-06 22:04:16,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 203 transitions, 2174 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-06 22:04:16,144 INFO L231 Difference]: Finished difference. Result has 119 places, 161 transitions, 1812 flow [2023-11-06 22:04:16,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1812, PETRI_PLACES=119, PETRI_TRANSITIONS=161} [2023-11-06 22:04:16,147 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 45 predicate places. [2023-11-06 22:04:16,147 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 161 transitions, 1812 flow [2023-11-06 22:04:16,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 195.4) internal successors, (1954), 10 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:16,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:16,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:16,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:04:16,149 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:16,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:16,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1939766635, now seen corresponding path program 1 times [2023-11-06 22:04:16,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:16,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026825674] [2023-11-06 22:04:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:16,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:16,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:16,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026825674] [2023-11-06 22:04:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026825674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:16,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:16,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:04:16,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622682397] [2023-11-06 22:04:16,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:16,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:04:16,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:16,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:04:16,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:04:18,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:18,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 161 transitions, 1812 flow. Second operand has 10 states, 10 states have (on average 195.4) internal successors, (1954), 10 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:18,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:18,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:18,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:20,478 INFO L124 PetriNetUnfolderBase]: 427/909 cut-off events. [2023-11-06 22:04:20,479 INFO L125 PetriNetUnfolderBase]: For 5956/5956 co-relation queries the response was YES. [2023-11-06 22:04:20,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5194 conditions, 909 events. 427/909 cut-off events. For 5956/5956 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4278 event pairs, 38 based on Foata normal form. 4/901 useless extension candidates. Maximal degree in co-relation 5163. Up to 475 conditions per place. [2023-11-06 22:04:20,490 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 164 selfloop transitions, 74 changer transitions 0/256 dead transitions. [2023-11-06 22:04:20,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 256 transitions, 3228 flow [2023-11-06 22:04:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:04:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:04:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2436 transitions. [2023-11-06 22:04:20,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39264990328820115 [2023-11-06 22:04:20,501 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2436 transitions. [2023-11-06 22:04:20,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2436 transitions. [2023-11-06 22:04:20,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:20,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2436 transitions. [2023-11-06 22:04:20,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:20,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:20,526 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:20,527 INFO L175 Difference]: Start difference. First operand has 119 places, 161 transitions, 1812 flow. Second operand 12 states and 2436 transitions. [2023-11-06 22:04:20,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 256 transitions, 3228 flow [2023-11-06 22:04:20,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 256 transitions, 3200 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:04:20,573 INFO L231 Difference]: Finished difference. Result has 133 places, 205 transitions, 2782 flow [2023-11-06 22:04:20,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2782, PETRI_PLACES=133, PETRI_TRANSITIONS=205} [2023-11-06 22:04:20,575 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 59 predicate places. [2023-11-06 22:04:20,575 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 205 transitions, 2782 flow [2023-11-06 22:04:20,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 195.4) internal successors, (1954), 10 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:20,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:20,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:20,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:04:20,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:20,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:20,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2120956953, now seen corresponding path program 2 times [2023-11-06 22:04:20,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:20,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739386465] [2023-11-06 22:04:20,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:20,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:21,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739386465] [2023-11-06 22:04:21,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739386465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:21,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:21,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:21,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924062980] [2023-11-06 22:04:21,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:21,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:21,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:21,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:23,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:23,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 205 transitions, 2782 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:23,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:23,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:23,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:26,658 INFO L124 PetriNetUnfolderBase]: 539/1169 cut-off events. [2023-11-06 22:04:26,658 INFO L125 PetriNetUnfolderBase]: For 9775/9776 co-relation queries the response was YES. [2023-11-06 22:04:26,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7152 conditions, 1169 events. 539/1169 cut-off events. For 9775/9776 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6140 event pairs, 41 based on Foata normal form. 5/1155 useless extension candidates. Maximal degree in co-relation 7115. Up to 601 conditions per place. [2023-11-06 22:04:26,683 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 149 selfloop transitions, 114 changer transitions 0/281 dead transitions. [2023-11-06 22:04:26,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 281 transitions, 4126 flow [2023-11-06 22:04:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2239 transitions. [2023-11-06 22:04:26,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3937049410937225 [2023-11-06 22:04:26,695 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2239 transitions. [2023-11-06 22:04:26,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2239 transitions. [2023-11-06 22:04:26,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:26,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2239 transitions. [2023-11-06 22:04:26,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:26,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:26,718 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:26,719 INFO L175 Difference]: Start difference. First operand has 133 places, 205 transitions, 2782 flow. Second operand 11 states and 2239 transitions. [2023-11-06 22:04:26,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 281 transitions, 4126 flow [2023-11-06 22:04:26,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 281 transitions, 4090 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:04:26,795 INFO L231 Difference]: Finished difference. Result has 145 places, 246 transitions, 3798 flow [2023-11-06 22:04:26,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=2756, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3798, PETRI_PLACES=145, PETRI_TRANSITIONS=246} [2023-11-06 22:04:26,797 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 71 predicate places. [2023-11-06 22:04:26,797 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 246 transitions, 3798 flow [2023-11-06 22:04:26,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:26,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:26,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:26,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:04:26,799 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:26,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2073346709, now seen corresponding path program 2 times [2023-11-06 22:04:26,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:26,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970226287] [2023-11-06 22:04:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:27,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:27,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970226287] [2023-11-06 22:04:27,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970226287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:27,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:27,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:27,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722496907] [2023-11-06 22:04:27,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:27,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:27,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:29,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:29,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 246 transitions, 3798 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:29,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:29,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:29,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:32,088 INFO L124 PetriNetUnfolderBase]: 639/1387 cut-off events. [2023-11-06 22:04:32,088 INFO L125 PetriNetUnfolderBase]: For 14125/14126 co-relation queries the response was YES. [2023-11-06 22:04:32,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9224 conditions, 1387 events. 639/1387 cut-off events. For 14125/14126 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7792 event pairs, 74 based on Foata normal form. 5/1369 useless extension candidates. Maximal degree in co-relation 9182. Up to 715 conditions per place. [2023-11-06 22:04:32,109 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 177 selfloop transitions, 127 changer transitions 0/322 dead transitions. [2023-11-06 22:04:32,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 322 transitions, 5252 flow [2023-11-06 22:04:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:32,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2242 transitions. [2023-11-06 22:04:32,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3942324599964832 [2023-11-06 22:04:32,119 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2242 transitions. [2023-11-06 22:04:32,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2242 transitions. [2023-11-06 22:04:32,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:32,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2242 transitions. [2023-11-06 22:04:32,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.8181818181818) internal successors, (2242), 11 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:32,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:32,144 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:32,145 INFO L175 Difference]: Start difference. First operand has 145 places, 246 transitions, 3798 flow. Second operand 11 states and 2242 transitions. [2023-11-06 22:04:32,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 322 transitions, 5252 flow [2023-11-06 22:04:32,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 322 transitions, 5198 flow, removed 14 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:32,247 INFO L231 Difference]: Finished difference. Result has 156 places, 285 transitions, 4844 flow [2023-11-06 22:04:32,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=3744, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4844, PETRI_PLACES=156, PETRI_TRANSITIONS=285} [2023-11-06 22:04:32,248 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 82 predicate places. [2023-11-06 22:04:32,249 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 285 transitions, 4844 flow [2023-11-06 22:04:32,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:32,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:32,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:32,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:04:32,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:32,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash 487837395, now seen corresponding path program 3 times [2023-11-06 22:04:32,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:32,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035107980] [2023-11-06 22:04:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:32,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:33,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035107980] [2023-11-06 22:04:33,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035107980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:33,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:33,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264385967] [2023-11-06 22:04:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:33,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:33,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:35,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:35,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 285 transitions, 4844 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:35,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:35,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:35,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:37,900 INFO L124 PetriNetUnfolderBase]: 660/1488 cut-off events. [2023-11-06 22:04:37,900 INFO L125 PetriNetUnfolderBase]: For 17875/17877 co-relation queries the response was YES. [2023-11-06 22:04:37,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10277 conditions, 1488 events. 660/1488 cut-off events. For 17875/17877 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8731 event pairs, 54 based on Foata normal form. 6/1464 useless extension candidates. Maximal degree in co-relation 10230. Up to 775 conditions per place. [2023-11-06 22:04:37,919 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 180 selfloop transitions, 133 changer transitions 0/331 dead transitions. [2023-11-06 22:04:37,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 331 transitions, 5858 flow [2023-11-06 22:04:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2236 transitions. [2023-11-06 22:04:37,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39317742219096186 [2023-11-06 22:04:37,928 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2236 transitions. [2023-11-06 22:04:37,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2236 transitions. [2023-11-06 22:04:37,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:37,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2236 transitions. [2023-11-06 22:04:37,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.27272727272728) internal successors, (2236), 11 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:37,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:37,948 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:37,949 INFO L175 Difference]: Start difference. First operand has 156 places, 285 transitions, 4844 flow. Second operand 11 states and 2236 transitions. [2023-11-06 22:04:37,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 331 transitions, 5858 flow [2023-11-06 22:04:38,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 331 transitions, 5800 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:38,094 INFO L231 Difference]: Finished difference. Result has 166 places, 301 transitions, 5481 flow [2023-11-06 22:04:38,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=4786, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5481, PETRI_PLACES=166, PETRI_TRANSITIONS=301} [2023-11-06 22:04:38,096 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 92 predicate places. [2023-11-06 22:04:38,096 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 301 transitions, 5481 flow [2023-11-06 22:04:38,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:38,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:38,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:04:38,098 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:38,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2026977349, now seen corresponding path program 3 times [2023-11-06 22:04:38,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:38,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65216637] [2023-11-06 22:04:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:38,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65216637] [2023-11-06 22:04:38,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65216637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:38,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:38,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:38,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580086451] [2023-11-06 22:04:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:38,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:40,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:40,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 301 transitions, 5481 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:40,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:40,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:40,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:42,857 INFO L124 PetriNetUnfolderBase]: 679/1578 cut-off events. [2023-11-06 22:04:42,857 INFO L125 PetriNetUnfolderBase]: For 21184/21185 co-relation queries the response was YES. [2023-11-06 22:04:42,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11331 conditions, 1578 events. 679/1578 cut-off events. For 21184/21185 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9627 event pairs, 68 based on Foata normal form. 5/1548 useless extension candidates. Maximal degree in co-relation 11280. Up to 783 conditions per place. [2023-11-06 22:04:42,880 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 197 selfloop transitions, 142 changer transitions 0/357 dead transitions. [2023-11-06 22:04:42,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 357 transitions, 6717 flow [2023-11-06 22:04:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2243 transitions. [2023-11-06 22:04:42,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39440829963073676 [2023-11-06 22:04:42,886 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2243 transitions. [2023-11-06 22:04:42,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2243 transitions. [2023-11-06 22:04:42,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:42,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2243 transitions. [2023-11-06 22:04:42,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.9090909090909) internal successors, (2243), 11 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:42,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:42,903 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:42,904 INFO L175 Difference]: Start difference. First operand has 166 places, 301 transitions, 5481 flow. Second operand 11 states and 2243 transitions. [2023-11-06 22:04:42,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 357 transitions, 6717 flow [2023-11-06 22:04:43,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 357 transitions, 6654 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-11-06 22:04:43,096 INFO L231 Difference]: Finished difference. Result has 177 places, 322 transitions, 6370 flow [2023-11-06 22:04:43,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=5418, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6370, PETRI_PLACES=177, PETRI_TRANSITIONS=322} [2023-11-06 22:04:43,099 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 103 predicate places. [2023-11-06 22:04:43,099 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 322 transitions, 6370 flow [2023-11-06 22:04:43,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:43,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:43,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:04:43,101 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:43,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1093599955, now seen corresponding path program 4 times [2023-11-06 22:04:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:43,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887964228] [2023-11-06 22:04:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:43,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:43,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:43,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887964228] [2023-11-06 22:04:43,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887964228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:43,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:43,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:43,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827834958] [2023-11-06 22:04:43,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:43,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:43,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:43,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:45,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:45,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 322 transitions, 6370 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:45,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:45,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:45,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:48,465 INFO L124 PetriNetUnfolderBase]: 710/1698 cut-off events. [2023-11-06 22:04:48,465 INFO L125 PetriNetUnfolderBase]: For 28097/28100 co-relation queries the response was YES. [2023-11-06 22:04:48,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12644 conditions, 1698 events. 710/1698 cut-off events. For 28097/28100 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 10867 event pairs, 69 based on Foata normal form. 7/1664 useless extension candidates. Maximal degree in co-relation 12587. Up to 828 conditions per place. [2023-11-06 22:04:48,490 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 202 selfloop transitions, 153 changer transitions 0/373 dead transitions. [2023-11-06 22:04:48,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 373 transitions, 7610 flow [2023-11-06 22:04:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2239 transitions. [2023-11-06 22:04:48,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3937049410937225 [2023-11-06 22:04:48,496 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2239 transitions. [2023-11-06 22:04:48,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2239 transitions. [2023-11-06 22:04:48,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:48,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2239 transitions. [2023-11-06 22:04:48,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:48,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:48,509 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:48,510 INFO L175 Difference]: Start difference. First operand has 177 places, 322 transitions, 6370 flow. Second operand 11 states and 2239 transitions. [2023-11-06 22:04:48,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 373 transitions, 7610 flow [2023-11-06 22:04:48,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 373 transitions, 7442 flow, removed 30 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:48,774 INFO L231 Difference]: Finished difference. Result has 189 places, 342 transitions, 7210 flow [2023-11-06 22:04:48,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=6208, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7210, PETRI_PLACES=189, PETRI_TRANSITIONS=342} [2023-11-06 22:04:48,775 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 115 predicate places. [2023-11-06 22:04:48,776 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 342 transitions, 7210 flow [2023-11-06 22:04:48,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:48,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:48,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:48,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:04:48,777 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:48,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:48,778 INFO L85 PathProgramCache]: Analyzing trace with hash 484590331, now seen corresponding path program 4 times [2023-11-06 22:04:48,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:48,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023860035] [2023-11-06 22:04:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:48,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:49,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023860035] [2023-11-06 22:04:49,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023860035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:49,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:49,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:49,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435375853] [2023-11-06 22:04:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:49,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:04:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:04:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:51,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 517 [2023-11-06 22:04:51,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 342 transitions, 7210 flow. Second operand has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:51,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:51,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 517 [2023-11-06 22:04:51,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:54,282 INFO L124 PetriNetUnfolderBase]: 719/1757 cut-off events. [2023-11-06 22:04:54,282 INFO L125 PetriNetUnfolderBase]: For 33778/33781 co-relation queries the response was YES. [2023-11-06 22:04:54,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13506 conditions, 1757 events. 719/1757 cut-off events. For 33778/33781 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 11533 event pairs, 54 based on Foata normal form. 7/1719 useless extension candidates. Maximal degree in co-relation 13443. Up to 864 conditions per place. [2023-11-06 22:04:54,308 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 221 selfloop transitions, 150 changer transitions 0/389 dead transitions. [2023-11-06 22:04:54,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 389 transitions, 8426 flow [2023-11-06 22:04:54,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:04:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:04:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2239 transitions. [2023-11-06 22:04:54,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3937049410937225 [2023-11-06 22:04:54,313 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2239 transitions. [2023-11-06 22:04:54,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2239 transitions. [2023-11-06 22:04:54,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:54,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2239 transitions. [2023-11-06 22:04:54,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:54,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:54,326 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:54,327 INFO L175 Difference]: Start difference. First operand has 189 places, 342 transitions, 7210 flow. Second operand 11 states and 2239 transitions. [2023-11-06 22:04:54,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 389 transitions, 8426 flow [2023-11-06 22:04:54,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 389 transitions, 8252 flow, removed 39 selfloop flow, removed 7 redundant places. [2023-11-06 22:04:54,612 INFO L231 Difference]: Finished difference. Result has 196 places, 357 transitions, 7858 flow [2023-11-06 22:04:54,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=7036, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7858, PETRI_PLACES=196, PETRI_TRANSITIONS=357} [2023-11-06 22:04:54,615 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 122 predicate places. [2023-11-06 22:04:54,615 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 357 transitions, 7858 flow [2023-11-06 22:04:54,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 195.27272727272728) internal successors, (2148), 11 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:54,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:54,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:54,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:04:54,616 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:54,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2045934532, now seen corresponding path program 1 times [2023-11-06 22:04:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474574282] [2023-11-06 22:04:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:54,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:55,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:55,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474574282] [2023-11-06 22:04:55,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474574282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:55,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:55,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:04:55,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907923013] [2023-11-06 22:04:55,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:55,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:04:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:04:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:04:56,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:04:56,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 357 transitions, 7858 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:56,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:56,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:04:56,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:58,928 INFO L124 PetriNetUnfolderBase]: 1043/2580 cut-off events. [2023-11-06 22:04:58,928 INFO L125 PetriNetUnfolderBase]: For 51089/51098 co-relation queries the response was YES. [2023-11-06 22:04:59,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20429 conditions, 2580 events. 1043/2580 cut-off events. For 51089/51098 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18634 event pairs, 153 based on Foata normal form. 11/2526 useless extension candidates. Maximal degree in co-relation 20365. Up to 1231 conditions per place. [2023-11-06 22:04:59,039 INFO L140 encePairwiseOnDemand]: 502/517 looper letters, 380 selfloop transitions, 139 changer transitions 0/537 dead transitions. [2023-11-06 22:04:59,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 537 transitions, 12399 flow [2023-11-06 22:04:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:04:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:04:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2509 transitions. [2023-11-06 22:04:59,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40441650548033525 [2023-11-06 22:04:59,045 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2509 transitions. [2023-11-06 22:04:59,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2509 transitions. [2023-11-06 22:04:59,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:59,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2509 transitions. [2023-11-06 22:04:59,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 209.08333333333334) internal successors, (2509), 12 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:59,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:59,060 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:59,060 INFO L175 Difference]: Start difference. First operand has 196 places, 357 transitions, 7858 flow. Second operand 12 states and 2509 transitions. [2023-11-06 22:04:59,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 537 transitions, 12399 flow [2023-11-06 22:04:59,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 537 transitions, 12276 flow, removed 23 selfloop flow, removed 5 redundant places. [2023-11-06 22:04:59,578 INFO L231 Difference]: Finished difference. Result has 210 places, 430 transitions, 10418 flow [2023-11-06 22:04:59,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=7785, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10418, PETRI_PLACES=210, PETRI_TRANSITIONS=430} [2023-11-06 22:04:59,579 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 136 predicate places. [2023-11-06 22:04:59,580 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 430 transitions, 10418 flow [2023-11-06 22:04:59,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:59,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:59,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:59,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:04:59,581 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:04:59,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:59,581 INFO L85 PathProgramCache]: Analyzing trace with hash 53210536, now seen corresponding path program 2 times [2023-11-06 22:04:59,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:59,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914858159] [2023-11-06 22:04:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914858159] [2023-11-06 22:05:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914858159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:00,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:00,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:00,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903968355] [2023-11-06 22:05:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:00,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:02,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:02,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 430 transitions, 10418 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:02,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:02,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:02,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:06,020 INFO L124 PetriNetUnfolderBase]: 1051/2608 cut-off events. [2023-11-06 22:05:06,020 INFO L125 PetriNetUnfolderBase]: For 60191/60200 co-relation queries the response was YES. [2023-11-06 22:05:06,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21607 conditions, 2608 events. 1051/2608 cut-off events. For 60191/60200 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18941 event pairs, 96 based on Foata normal form. 11/2552 useless extension candidates. Maximal degree in co-relation 21536. Up to 1239 conditions per place. [2023-11-06 22:05:06,070 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 377 selfloop transitions, 176 changer transitions 0/571 dead transitions. [2023-11-06 22:05:06,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 571 transitions, 13583 flow [2023-11-06 22:05:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:05:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:05:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2713 transitions. [2023-11-06 22:05:06,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4036601696176164 [2023-11-06 22:05:06,077 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2713 transitions. [2023-11-06 22:05:06,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2713 transitions. [2023-11-06 22:05:06,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:06,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2713 transitions. [2023-11-06 22:05:06,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 208.69230769230768) internal successors, (2713), 13 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:06,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 517.0) internal successors, (7238), 14 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:06,093 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 517.0) internal successors, (7238), 14 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:06,093 INFO L175 Difference]: Start difference. First operand has 210 places, 430 transitions, 10418 flow. Second operand 13 states and 2713 transitions. [2023-11-06 22:05:06,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 571 transitions, 13583 flow [2023-11-06 22:05:06,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 571 transitions, 13554 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-11-06 22:05:06,657 INFO L231 Difference]: Finished difference. Result has 225 places, 457 transitions, 11609 flow [2023-11-06 22:05:06,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=10389, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11609, PETRI_PLACES=225, PETRI_TRANSITIONS=457} [2023-11-06 22:05:06,658 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 151 predicate places. [2023-11-06 22:05:06,658 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 457 transitions, 11609 flow [2023-11-06 22:05:06,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:06,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:06,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:06,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:05:06,659 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:06,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 15481197, now seen corresponding path program 1 times [2023-11-06 22:05:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263306311] [2023-11-06 22:05:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:07,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:07,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:07,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263306311] [2023-11-06 22:05:07,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263306311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:07,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:07,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:07,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923888945] [2023-11-06 22:05:07,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:07,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:07,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:07,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:07,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:09,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:09,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 457 transitions, 11609 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:09,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:09,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:09,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:12,307 INFO L124 PetriNetUnfolderBase]: 1059/2654 cut-off events. [2023-11-06 22:05:12,307 INFO L125 PetriNetUnfolderBase]: For 70164/70164 co-relation queries the response was YES. [2023-11-06 22:05:12,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22717 conditions, 2654 events. 1059/2654 cut-off events. For 70164/70164 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 19413 event pairs, 111 based on Foata normal form. 2/2584 useless extension candidates. Maximal degree in co-relation 22639. Up to 1247 conditions per place. [2023-11-06 22:05:12,352 INFO L140 encePairwiseOnDemand]: 504/517 looper letters, 338 selfloop transitions, 175 changer transitions 0/531 dead transitions. [2023-11-06 22:05:12,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 531 transitions, 13378 flow [2023-11-06 22:05:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:05:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:05:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2694 transitions. [2023-11-06 22:05:12,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40083320934384764 [2023-11-06 22:05:12,360 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2694 transitions. [2023-11-06 22:05:12,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2694 transitions. [2023-11-06 22:05:12,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:12,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2694 transitions. [2023-11-06 22:05:12,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 207.23076923076923) internal successors, (2694), 13 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:12,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 517.0) internal successors, (7238), 14 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:12,382 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 517.0) internal successors, (7238), 14 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:12,382 INFO L175 Difference]: Start difference. First operand has 225 places, 457 transitions, 11609 flow. Second operand 13 states and 2694 transitions. [2023-11-06 22:05:12,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 531 transitions, 13378 flow [2023-11-06 22:05:12,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 531 transitions, 13212 flow, removed 56 selfloop flow, removed 5 redundant places. [2023-11-06 22:05:12,984 INFO L231 Difference]: Finished difference. Result has 237 places, 482 transitions, 12565 flow [2023-11-06 22:05:12,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=11453, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12565, PETRI_PLACES=237, PETRI_TRANSITIONS=482} [2023-11-06 22:05:12,985 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 163 predicate places. [2023-11-06 22:05:12,985 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 482 transitions, 12565 flow [2023-11-06 22:05:12,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:12,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:12,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:12,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:05:12,986 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:12,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:12,987 INFO L85 PathProgramCache]: Analyzing trace with hash -277396436, now seen corresponding path program 3 times [2023-11-06 22:05:12,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:12,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165108846] [2023-11-06 22:05:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:12,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:13,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:13,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165108846] [2023-11-06 22:05:13,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165108846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:13,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:13,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:13,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37845406] [2023-11-06 22:05:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:13,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:15,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:15,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 482 transitions, 12565 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:15,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:15,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:15,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:18,787 INFO L124 PetriNetUnfolderBase]: 1142/2909 cut-off events. [2023-11-06 22:05:18,788 INFO L125 PetriNetUnfolderBase]: For 87474/87482 co-relation queries the response was YES. [2023-11-06 22:05:18,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25432 conditions, 2909 events. 1142/2909 cut-off events. For 87474/87482 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22201 event pairs, 126 based on Foata normal form. 10/2835 useless extension candidates. Maximal degree in co-relation 25350. Up to 1360 conditions per place. [2023-11-06 22:05:18,823 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 267 selfloop transitions, 256 changer transitions 0/541 dead transitions. [2023-11-06 22:05:18,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 541 transitions, 14704 flow [2023-11-06 22:05:18,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:05:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:05:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2288 transitions. [2023-11-06 22:05:18,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.402321083172147 [2023-11-06 22:05:18,832 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2288 transitions. [2023-11-06 22:05:18,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2288 transitions. [2023-11-06 22:05:18,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:18,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2288 transitions. [2023-11-06 22:05:18,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 208.0) internal successors, (2288), 11 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:18,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:18,845 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:18,845 INFO L175 Difference]: Start difference. First operand has 237 places, 482 transitions, 12565 flow. Second operand 11 states and 2288 transitions. [2023-11-06 22:05:18,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 541 transitions, 14704 flow [2023-11-06 22:05:19,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 541 transitions, 14674 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-11-06 22:05:19,456 INFO L231 Difference]: Finished difference. Result has 245 places, 504 transitions, 14162 flow [2023-11-06 22:05:19,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=12535, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14162, PETRI_PLACES=245, PETRI_TRANSITIONS=504} [2023-11-06 22:05:19,457 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2023-11-06 22:05:19,457 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 504 transitions, 14162 flow [2023-11-06 22:05:19,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:19,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:19,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:19,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:05:19,458 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:19,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2106381416, now seen corresponding path program 4 times [2023-11-06 22:05:19,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:19,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058138095] [2023-11-06 22:05:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:19,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:20,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:20,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058138095] [2023-11-06 22:05:20,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058138095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:20,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:20,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:20,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584472672] [2023-11-06 22:05:20,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:20,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:20,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:20,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:20,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:21,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:21,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 504 transitions, 14162 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:21,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:21,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:21,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:25,626 INFO L124 PetriNetUnfolderBase]: 1204/3077 cut-off events. [2023-11-06 22:05:25,627 INFO L125 PetriNetUnfolderBase]: For 102704/102712 co-relation queries the response was YES. [2023-11-06 22:05:25,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27706 conditions, 3077 events. 1204/3077 cut-off events. For 102704/102712 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 23873 event pairs, 115 based on Foata normal form. 10/2995 useless extension candidates. Maximal degree in co-relation 27621. Up to 1438 conditions per place. [2023-11-06 22:05:25,674 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 294 selfloop transitions, 253 changer transitions 0/565 dead transitions. [2023-11-06 22:05:25,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 565 transitions, 16161 flow [2023-11-06 22:05:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:05:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:05:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2497 transitions. [2023-11-06 22:05:25,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024822695035461 [2023-11-06 22:05:25,680 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2497 transitions. [2023-11-06 22:05:25,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2497 transitions. [2023-11-06 22:05:25,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:25,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2497 transitions. [2023-11-06 22:05:25,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.08333333333334) internal successors, (2497), 12 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:25,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:25,695 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:25,696 INFO L175 Difference]: Start difference. First operand has 245 places, 504 transitions, 14162 flow. Second operand 12 states and 2497 transitions. [2023-11-06 22:05:25,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 565 transitions, 16161 flow [2023-11-06 22:05:26,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 565 transitions, 15987 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-06 22:05:26,612 INFO L231 Difference]: Finished difference. Result has 254 places, 526 transitions, 15382 flow [2023-11-06 22:05:26,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=13995, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15382, PETRI_PLACES=254, PETRI_TRANSITIONS=526} [2023-11-06 22:05:26,613 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 180 predicate places. [2023-11-06 22:05:26,613 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 526 transitions, 15382 flow [2023-11-06 22:05:26,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:26,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:26,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:26,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:05:26,615 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:26,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:26,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1926803479, now seen corresponding path program 2 times [2023-11-06 22:05:26,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:26,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558346068] [2023-11-06 22:05:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:26,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:27,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558346068] [2023-11-06 22:05:27,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558346068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:27,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:27,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:27,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875844943] [2023-11-06 22:05:27,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:27,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:27,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:27,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:27,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:29,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:29,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 526 transitions, 15382 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:29,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:29,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:29,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:33,441 INFO L124 PetriNetUnfolderBase]: 1270/3177 cut-off events. [2023-11-06 22:05:33,441 INFO L125 PetriNetUnfolderBase]: For 119394/119396 co-relation queries the response was YES. [2023-11-06 22:05:33,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29842 conditions, 3177 events. 1270/3177 cut-off events. For 119394/119396 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 24535 event pairs, 117 based on Foata normal form. 4/3091 useless extension candidates. Maximal degree in co-relation 29752. Up to 1516 conditions per place. [2023-11-06 22:05:33,491 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 327 selfloop transitions, 250 changer transitions 0/595 dead transitions. [2023-11-06 22:05:33,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 595 transitions, 17672 flow [2023-11-06 22:05:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:05:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:05:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2497 transitions. [2023-11-06 22:05:33,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024822695035461 [2023-11-06 22:05:33,495 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2497 transitions. [2023-11-06 22:05:33,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2497 transitions. [2023-11-06 22:05:33,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:33,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2497 transitions. [2023-11-06 22:05:33,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.08333333333334) internal successors, (2497), 12 states have internal predecessors, (2497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:33,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:33,510 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:33,510 INFO L175 Difference]: Start difference. First operand has 254 places, 526 transitions, 15382 flow. Second operand 12 states and 2497 transitions. [2023-11-06 22:05:33,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 595 transitions, 17672 flow [2023-11-06 22:05:34,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 595 transitions, 17541 flow, removed 45 selfloop flow, removed 5 redundant places. [2023-11-06 22:05:34,742 INFO L231 Difference]: Finished difference. Result has 265 places, 553 transitions, 16813 flow [2023-11-06 22:05:34,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=15255, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16813, PETRI_PLACES=265, PETRI_TRANSITIONS=553} [2023-11-06 22:05:34,744 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 191 predicate places. [2023-11-06 22:05:34,744 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 553 transitions, 16813 flow [2023-11-06 22:05:34,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:34,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:34,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:34,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:05:34,745 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:34,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1500618856, now seen corresponding path program 5 times [2023-11-06 22:05:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535492971] [2023-11-06 22:05:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:35,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535492971] [2023-11-06 22:05:35,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535492971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:35,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:35,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167141162] [2023-11-06 22:05:35,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:35,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:35,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:37,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:37,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 553 transitions, 16813 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:37,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:37,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:37,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:41,988 INFO L124 PetriNetUnfolderBase]: 1338/3365 cut-off events. [2023-11-06 22:05:41,988 INFO L125 PetriNetUnfolderBase]: For 139522/139530 co-relation queries the response was YES. [2023-11-06 22:05:42,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32256 conditions, 3365 events. 1338/3365 cut-off events. For 139522/139530 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 26433 event pairs, 83 based on Foata normal form. 10/3275 useless extension candidates. Maximal degree in co-relation 32162. Up to 1600 conditions per place. [2023-11-06 22:05:42,051 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 293 selfloop transitions, 295 changer transitions 0/606 dead transitions. [2023-11-06 22:05:42,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 606 transitions, 18811 flow [2023-11-06 22:05:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:05:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:05:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2493 transitions. [2023-11-06 22:05:42,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4018375241779497 [2023-11-06 22:05:42,055 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2493 transitions. [2023-11-06 22:05:42,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2493 transitions. [2023-11-06 22:05:42,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:42,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2493 transitions. [2023-11-06 22:05:42,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.75) internal successors, (2493), 12 states have internal predecessors, (2493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:42,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:42,068 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:42,068 INFO L175 Difference]: Start difference. First operand has 265 places, 553 transitions, 16813 flow. Second operand 12 states and 2493 transitions. [2023-11-06 22:05:42,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 606 transitions, 18811 flow [2023-11-06 22:05:43,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 606 transitions, 18491 flow, removed 38 selfloop flow, removed 6 redundant places. [2023-11-06 22:05:43,620 INFO L231 Difference]: Finished difference. Result has 275 places, 572 transitions, 18195 flow [2023-11-06 22:05:43,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=16505, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=18195, PETRI_PLACES=275, PETRI_TRANSITIONS=572} [2023-11-06 22:05:43,621 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 201 predicate places. [2023-11-06 22:05:43,622 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 572 transitions, 18195 flow [2023-11-06 22:05:43,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:43,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:43,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:43,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:05:43,622 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:43,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1325055508, now seen corresponding path program 6 times [2023-11-06 22:05:43,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:43,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293013269] [2023-11-06 22:05:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:43,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:44,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:44,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:44,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293013269] [2023-11-06 22:05:44,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293013269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:44,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:44,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:44,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221770142] [2023-11-06 22:05:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:44,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:44,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:44,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:44,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:46,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:46,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 572 transitions, 18195 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:46,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:46,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:46,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:51,166 INFO L124 PetriNetUnfolderBase]: 1368/3481 cut-off events. [2023-11-06 22:05:51,166 INFO L125 PetriNetUnfolderBase]: For 150142/150150 co-relation queries the response was YES. [2023-11-06 22:05:51,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34176 conditions, 3481 events. 1368/3481 cut-off events. For 150142/150150 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27778 event pairs, 116 based on Foata normal form. 10/3383 useless extension candidates. Maximal degree in co-relation 34079. Up to 1646 conditions per place. [2023-11-06 22:05:51,231 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 313 selfloop transitions, 293 changer transitions 0/624 dead transitions. [2023-11-06 22:05:51,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 624 transitions, 20215 flow [2023-11-06 22:05:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:05:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:05:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2495 transitions. [2023-11-06 22:05:51,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4021598968407479 [2023-11-06 22:05:51,366 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2495 transitions. [2023-11-06 22:05:51,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2495 transitions. [2023-11-06 22:05:51,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:51,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2495 transitions. [2023-11-06 22:05:51,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.91666666666666) internal successors, (2495), 12 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:51,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:51,390 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:51,390 INFO L175 Difference]: Start difference. First operand has 275 places, 572 transitions, 18195 flow. Second operand 12 states and 2495 transitions. [2023-11-06 22:05:51,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 624 transitions, 20215 flow [2023-11-06 22:05:52,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 624 transitions, 19872 flow, removed 20 selfloop flow, removed 7 redundant places. [2023-11-06 22:05:53,006 INFO L231 Difference]: Finished difference. Result has 284 places, 592 transitions, 19497 flow [2023-11-06 22:05:53,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=17859, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19497, PETRI_PLACES=284, PETRI_TRANSITIONS=592} [2023-11-06 22:05:53,007 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 210 predicate places. [2023-11-06 22:05:53,007 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 592 transitions, 19497 flow [2023-11-06 22:05:53,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:53,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:53,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:05:53,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:05:53,008 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:05:53,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:53,009 INFO L85 PathProgramCache]: Analyzing trace with hash -275375417, now seen corresponding path program 3 times [2023-11-06 22:05:53,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:53,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538948226] [2023-11-06 22:05:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:53,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:05:53,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:53,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538948226] [2023-11-06 22:05:53,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538948226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:53,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:53,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:05:53,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468867507] [2023-11-06 22:05:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:53,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:05:53,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:53,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:05:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:05:55,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:05:55,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 592 transitions, 19497 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:05:55,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:55,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:05:55,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:59,936 INFO L124 PetriNetUnfolderBase]: 1448/3573 cut-off events. [2023-11-06 22:05:59,936 INFO L125 PetriNetUnfolderBase]: For 170291/170295 co-relation queries the response was YES. [2023-11-06 22:05:59,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37432 conditions, 3573 events. 1448/3573 cut-off events. For 170291/170295 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 28202 event pairs, 96 based on Foata normal form. 6/3479 useless extension candidates. Maximal degree in co-relation 37331. Up to 1754 conditions per place. [2023-11-06 22:06:00,013 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 344 selfloop transitions, 312 changer transitions 0/674 dead transitions. [2023-11-06 22:06:00,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 674 transitions, 22692 flow [2023-11-06 22:06:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:06:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:06:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2496 transitions. [2023-11-06 22:06:00,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.402321083172147 [2023-11-06 22:06:00,017 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2496 transitions. [2023-11-06 22:06:00,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2496 transitions. [2023-11-06 22:06:00,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:00,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2496 transitions. [2023-11-06 22:06:00,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.0) internal successors, (2496), 12 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:00,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:00,030 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:00,030 INFO L175 Difference]: Start difference. First operand has 284 places, 592 transitions, 19497 flow. Second operand 12 states and 2496 transitions. [2023-11-06 22:06:00,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 674 transitions, 22692 flow [2023-11-06 22:06:02,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 674 transitions, 22479 flow, removed 40 selfloop flow, removed 7 redundant places. [2023-11-06 22:06:02,208 INFO L231 Difference]: Finished difference. Result has 293 places, 633 transitions, 21822 flow [2023-11-06 22:06:02,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=19294, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21822, PETRI_PLACES=293, PETRI_TRANSITIONS=633} [2023-11-06 22:06:02,210 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 219 predicate places. [2023-11-06 22:06:02,210 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 633 transitions, 21822 flow [2023-11-06 22:06:02,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:02,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:02,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:02,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:06:02,212 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:06:02,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2075736391, now seen corresponding path program 4 times [2023-11-06 22:06:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995945506] [2023-11-06 22:06:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:02,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995945506] [2023-11-06 22:06:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995945506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:02,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:02,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:06:02,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294827082] [2023-11-06 22:06:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:02,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:06:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:02,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:06:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:06:04,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:06:04,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 633 transitions, 21822 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:04,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:04,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:06:04,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:09,233 INFO L124 PetriNetUnfolderBase]: 1553/3819 cut-off events. [2023-11-06 22:06:09,233 INFO L125 PetriNetUnfolderBase]: For 207873/207884 co-relation queries the response was YES. [2023-11-06 22:06:09,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42480 conditions, 3819 events. 1553/3819 cut-off events. For 207873/207884 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 30651 event pairs, 95 based on Foata normal form. 11/3727 useless extension candidates. Maximal degree in co-relation 42376. Up to 1911 conditions per place. [2023-11-06 22:06:09,300 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 335 selfloop transitions, 360 changer transitions 0/713 dead transitions. [2023-11-06 22:06:09,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 713 transitions, 25752 flow [2023-11-06 22:06:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:06:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:06:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2288 transitions. [2023-11-06 22:06:09,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.402321083172147 [2023-11-06 22:06:09,305 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2288 transitions. [2023-11-06 22:06:09,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2288 transitions. [2023-11-06 22:06:09,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:09,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2288 transitions. [2023-11-06 22:06:09,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 208.0) internal successors, (2288), 11 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,313 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 517.0) internal successors, (6204), 12 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,313 INFO L175 Difference]: Start difference. First operand has 293 places, 633 transitions, 21822 flow. Second operand 11 states and 2288 transitions. [2023-11-06 22:06:09,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 713 transitions, 25752 flow [2023-11-06 22:06:11,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 713 transitions, 25591 flow, removed 41 selfloop flow, removed 6 redundant places. [2023-11-06 22:06:11,516 INFO L231 Difference]: Finished difference. Result has 300 places, 673 transitions, 24884 flow [2023-11-06 22:06:11,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=21671, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=24884, PETRI_PLACES=300, PETRI_TRANSITIONS=673} [2023-11-06 22:06:11,518 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 226 predicate places. [2023-11-06 22:06:11,518 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 673 transitions, 24884 flow [2023-11-06 22:06:11,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:11,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:11,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:11,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-06 22:06:11,519 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:06:11,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1864131795, now seen corresponding path program 5 times [2023-11-06 22:06:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448274617] [2023-11-06 22:06:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:12,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:12,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448274617] [2023-11-06 22:06:12,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448274617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:12,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:12,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:06:12,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845573852] [2023-11-06 22:06:12,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:12,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:06:12,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:12,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:06:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:06:13,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 517 [2023-11-06 22:06:13,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 673 transitions, 24884 flow. Second operand has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:13,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:13,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 517 [2023-11-06 22:06:13,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:17,771 INFO L124 PetriNetUnfolderBase]: 1571/3881 cut-off events. [2023-11-06 22:06:17,771 INFO L125 PetriNetUnfolderBase]: For 224809/224815 co-relation queries the response was YES. [2023-11-06 22:06:17,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44684 conditions, 3881 events. 1571/3881 cut-off events. For 224809/224815 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 31301 event pairs, 102 based on Foata normal form. 8/3783 useless extension candidates. Maximal degree in co-relation 44578. Up to 1957 conditions per place. [2023-11-06 22:06:17,844 INFO L140 encePairwiseOnDemand]: 503/517 looper letters, 342 selfloop transitions, 368 changer transitions 0/728 dead transitions. [2023-11-06 22:06:17,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 728 transitions, 27458 flow [2023-11-06 22:06:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:06:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:06:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2493 transitions. [2023-11-06 22:06:17,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4018375241779497 [2023-11-06 22:06:17,849 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2493 transitions. [2023-11-06 22:06:17,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2493 transitions. [2023-11-06 22:06:17,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:17,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2493 transitions. [2023-11-06 22:06:17,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.75) internal successors, (2493), 12 states have internal predecessors, (2493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:17,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:17,859 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 517.0) internal successors, (6721), 13 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:17,860 INFO L175 Difference]: Start difference. First operand has 300 places, 673 transitions, 24884 flow. Second operand 12 states and 2493 transitions. [2023-11-06 22:06:17,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 728 transitions, 27458 flow [2023-11-06 22:06:20,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 728 transitions, 27225 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-11-06 22:06:20,329 INFO L231 Difference]: Finished difference. Result has 308 places, 696 transitions, 26818 flow [2023-11-06 22:06:20,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=24654, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26818, PETRI_PLACES=308, PETRI_TRANSITIONS=696} [2023-11-06 22:06:20,335 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 234 predicate places. [2023-11-06 22:06:20,336 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 696 transitions, 26818 flow [2023-11-06 22:06:20,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.25) internal successors, (2403), 12 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:20,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:20,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:20,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 22:06:20,337 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:06:20,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash -190554209, now seen corresponding path program 1 times [2023-11-06 22:06:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:20,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028046900] [2023-11-06 22:06:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:20,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028046900] [2023-11-06 22:06:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028046900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:21,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:06:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508114262] [2023-11-06 22:06:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:06:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:21,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:06:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:06:22,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 517 [2023-11-06 22:06:22,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 696 transitions, 26818 flow. Second operand has 13 states, 13 states have (on average 198.30769230769232) internal successors, (2578), 13 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:22,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:22,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 517 [2023-11-06 22:06:22,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand