./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:06:35,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:06:35,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:06:35,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:06:35,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:06:35,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:06:35,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:06:35,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:06:35,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:06:35,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:06:35,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:06:35,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:06:35,678 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:06:35,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:06:35,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:06:35,680 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:06:35,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:06:35,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:06:35,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:06:35,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:06:35,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:06:35,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:06:35,685 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:06:35,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:06:35,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:06:35,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:06:35,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:06:35,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:06:35,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:06:35,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:06:35,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:35,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:06:35,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:06:35,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:06:35,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:06:35,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:06:35,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:06:35,693 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:06:35,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:06:35,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:06:35,694 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:06:35,695 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_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2023-11-12 02:06:35,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:06:36,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:06:36,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:06:36,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:06:36,006 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:06:36,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-12 02:06:39,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:06:39,418 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:06:39,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-12 02:06:39,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/data/8026511ff/293cc37241ca4f85a72fcd2aa576e121/FLAGe3fe782d1 [2023-11-12 02:06:39,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/data/8026511ff/293cc37241ca4f85a72fcd2aa576e121 [2023-11-12 02:06:39,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:06:39,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:06:39,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:39,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:06:39,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:06:39,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:39" (1/1) ... [2023-11-12 02:06:39,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429e70eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:39, skipping insertion in model container [2023-11-12 02:06:39,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:39" (1/1) ... [2023-11-12 02:06:39,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:06:39,781 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:06:40,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:40,166 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:06:40,187 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:06:40,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:40,340 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:40,341 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:40,342 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:40,351 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:06:40,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40 WrapperNode [2023-11-12 02:06:40,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:40,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:40,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:06:40,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:06:40,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,437 INFO L138 Inliner]: procedures = 325, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-12 02:06:40,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:40,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:06:40,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:06:40,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:06:40,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:06:40,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:06:40,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:06:40,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:06:40,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:40,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:06:40,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:06:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ea771e5-1d3d-476a-9989-d3bc60c56ae8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:06:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-11-12 02:06:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-11-12 02:06:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:06:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:06:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:06:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:06:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:06:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:06:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:06:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:06:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:06:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:06:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:06:40,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:06:40,568 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:06:40,730 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:06:40,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:06:41,185 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:06:41,240 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:06:41,240 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:06:41,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:06:41 BoogieIcfgContainer [2023-11-12 02:06:41,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:06:41,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:06:41,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:06:41,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:06:41,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:06:39" (1/3) ... [2023-11-12 02:06:41,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e11437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:06:41, skipping insertion in model container [2023-11-12 02:06:41,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (2/3) ... [2023-11-12 02:06:41,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e11437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:06:41, skipping insertion in model container [2023-11-12 02:06:41,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:06:41" (3/3) ... [2023-11-12 02:06:41,252 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-11-12 02:06:41,261 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:06:41,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:06:41,271 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-12 02:06:41,271 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:06:41,516 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-11-12 02:06:41,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 286 transitions, 669 flow [2023-11-12 02:06:41,712 INFO L124 PetriNetUnfolderBase]: 8/199 cut-off events. [2023-11-12 02:06:41,712 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:06:41,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 199 events. 8/199 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 158 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2023-11-12 02:06:41,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 286 transitions, 669 flow [2023-11-12 02:06:41,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 173 transitions, 397 flow [2023-11-12 02:06:41,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:06:41,739 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 173 transitions, 397 flow [2023-11-12 02:06:41,742 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 173 transitions, 397 flow [2023-11-12 02:06:41,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 173 transitions, 397 flow [2023-11-12 02:06:41,786 INFO L124 PetriNetUnfolderBase]: 5/173 cut-off events. [2023-11-12 02:06:41,786 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:06:41,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 173 events. 5/173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-11-12 02:06:41,792 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-11-12 02:06:46,106 INFO L134 LiptonReduction]: Checked pairs total: 20067 [2023-11-12 02:06:46,107 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-11-12 02:06:46,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:06:46,139 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32f2b6b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:06:46,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-12 02:06:46,144 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:06:46,145 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-12 02:06:46,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:06:46,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:46,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:06:46,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:46,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:46,152 INFO L85 PathProgramCache]: Analyzing trace with hash 673646075, now seen corresponding path program 1 times [2023-11-12 02:06:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845569990] [2023-11-12 02:06:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:46,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:46,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:46,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845569990] [2023-11-12 02:06:46,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845569990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:46,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:46,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:06:46,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844479105] [2023-11-12 02:06:46,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:46,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:06:46,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:06:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:06:46,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 388 [2023-11-12 02:06:46,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 227 flow. Second operand has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:46,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:46,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 388 [2023-11-12 02:06:46,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:46,785 INFO L124 PetriNetUnfolderBase]: 317/933 cut-off events. [2023-11-12 02:06:46,785 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-11-12 02:06:46,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 933 events. 317/933 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4616 event pairs, 285 based on Foata normal form. 1/837 useless extension candidates. Maximal degree in co-relation 1542. Up to 488 conditions per place. [2023-11-12 02:06:46,799 INFO L140 encePairwiseOnDemand]: 375/388 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-11-12 02:06:46,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2023-11-12 02:06:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:06:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:06:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 529 transitions. [2023-11-12 02:06:46,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6817010309278351 [2023-11-12 02:06:46,818 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 529 transitions. [2023-11-12 02:06:46,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 529 transitions. [2023-11-12 02:06:46,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:46,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 529 transitions. [2023-11-12 02:06:46,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:46,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:46,836 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:46,838 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 227 flow. Second operand 2 states and 529 transitions. [2023-11-12 02:06:46,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2023-11-12 02:06:46,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-12 02:06:46,848 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2023-11-12 02:06:46,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2023-11-12 02:06:46,854 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -24 predicate places. [2023-11-12 02:06:46,854 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2023-11-12 02:06:46,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:46,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:46,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:46,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:06:46,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:46,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:46,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1447464408, now seen corresponding path program 1 times [2023-11-12 02:06:46,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:46,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074595179] [2023-11-12 02:06:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:46,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:47,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:47,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074595179] [2023-11-12 02:06:47,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074595179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:47,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:47,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:06:47,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334084371] [2023-11-12 02:06:47,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:47,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:06:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:06:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:06:48,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 388 [2023-11-12 02:06:48,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:48,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:48,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 388 [2023-11-12 02:06:48,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:49,118 INFO L124 PetriNetUnfolderBase]: 2227/4882 cut-off events. [2023-11-12 02:06:49,118 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2023-11-12 02:06:49,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8288 conditions, 4882 events. 2227/4882 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 33808 event pairs, 890 based on Foata normal form. 0/4359 useless extension candidates. Maximal degree in co-relation 8285. Up to 2312 conditions per place. [2023-11-12 02:06:49,158 INFO L140 encePairwiseOnDemand]: 378/388 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2023-11-12 02:06:49,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2023-11-12 02:06:49,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:06:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:06:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1546 transitions. [2023-11-12 02:06:49,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6640893470790378 [2023-11-12 02:06:49,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1546 transitions. [2023-11-12 02:06:49,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1546 transitions. [2023-11-12 02:06:49,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:49,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1546 transitions. [2023-11-12 02:06:49,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:49,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:49,191 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:49,192 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1546 transitions. [2023-11-12 02:06:49,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2023-11-12 02:06:49,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:06:49,200 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2023-11-12 02:06:49,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2023-11-12 02:06:49,201 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -15 predicate places. [2023-11-12 02:06:49,201 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2023-11-12 02:06:49,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.33333333333334) internal successors, (1400), 6 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:49,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:49,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:49,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:06:49,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:49,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 284128623, now seen corresponding path program 1 times [2023-11-12 02:06:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:49,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903532288] [2023-11-12 02:06:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903532288] [2023-11-12 02:06:49,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903532288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:49,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:49,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:06:49,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679960428] [2023-11-12 02:06:49,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:49,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:06:49,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:49,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:06:49,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:06:50,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 388 [2023-11-12 02:06:50,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:50,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:50,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 388 [2023-11-12 02:06:50,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:50,815 INFO L124 PetriNetUnfolderBase]: 1593/2722 cut-off events. [2023-11-12 02:06:50,815 INFO L125 PetriNetUnfolderBase]: For 1821/2444 co-relation queries the response was YES. [2023-11-12 02:06:50,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7474 conditions, 2722 events. 1593/2722 cut-off events. For 1821/2444 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13685 event pairs, 288 based on Foata normal form. 2/2488 useless extension candidates. Maximal degree in co-relation 7466. Up to 1837 conditions per place. [2023-11-12 02:06:50,848 INFO L140 encePairwiseOnDemand]: 379/388 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2023-11-12 02:06:50,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2023-11-12 02:06:50,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:06:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:06:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1459 transitions. [2023-11-12 02:06:50,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6267182130584192 [2023-11-12 02:06:50,853 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1459 transitions. [2023-11-12 02:06:50,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1459 transitions. [2023-11-12 02:06:50,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:50,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1459 transitions. [2023-11-12 02:06:50,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.16666666666666) internal successors, (1459), 6 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:50,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:50,867 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:50,868 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1459 transitions. [2023-11-12 02:06:50,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2023-11-12 02:06:50,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:06:50,882 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2023-11-12 02:06:50,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=92, PETRI_TRANSITIONS=113} [2023-11-12 02:06:50,884 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -10 predicate places. [2023-11-12 02:06:50,884 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2023-11-12 02:06:50,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:50,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:50,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:50,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:06:50,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:50,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1759754885, now seen corresponding path program 1 times [2023-11-12 02:06:50,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585714623] [2023-11-12 02:06:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:51,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:51,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585714623] [2023-11-12 02:06:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585714623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:51,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:51,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:06:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127423023] [2023-11-12 02:06:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:06:51,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:51,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:06:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:06:54,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 388 [2023-11-12 02:06:54,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 11 states, 11 states have (on average 218.54545454545453) internal successors, (2404), 11 states have internal predecessors, (2404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:54,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:54,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 388 [2023-11-12 02:06:54,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:56,131 INFO L124 PetriNetUnfolderBase]: 3044/6579 cut-off events. [2023-11-12 02:06:56,131 INFO L125 PetriNetUnfolderBase]: For 6206/6225 co-relation queries the response was YES. [2023-11-12 02:06:56,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17962 conditions, 6579 events. 3044/6579 cut-off events. For 6206/6225 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48192 event pairs, 1008 based on Foata normal form. 138/6028 useless extension candidates. Maximal degree in co-relation 17952. Up to 2298 conditions per place. [2023-11-12 02:06:56,204 INFO L140 encePairwiseOnDemand]: 374/388 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2023-11-12 02:06:56,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 296 transitions, 1700 flow [2023-11-12 02:06:56,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:06:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:06:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2825 transitions. [2023-11-12 02:06:56,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6067439862542955 [2023-11-12 02:06:56,215 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2825 transitions. [2023-11-12 02:06:56,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2825 transitions. [2023-11-12 02:06:56,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:56,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2825 transitions. [2023-11-12 02:06:56,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 235.41666666666666) internal successors, (2825), 12 states have internal predecessors, (2825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:56,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 388.0) internal successors, (5044), 13 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:56,241 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 388.0) internal successors, (5044), 13 states have internal predecessors, (5044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:56,242 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 12 states and 2825 transitions. [2023-11-12 02:06:56,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 296 transitions, 1700 flow [2023-11-12 02:06:56,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:06:56,263 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2023-11-12 02:06:56,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=746, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2023-11-12 02:06:56,264 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2023-11-12 02:06:56,264 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2023-11-12 02:06:56,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 218.54545454545453) internal successors, (2404), 11 states have internal predecessors, (2404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:56,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:56,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:56,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:06:56,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:56,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1236072205, now seen corresponding path program 2 times [2023-11-12 02:06:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184329366] [2023-11-12 02:06:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:56,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184329366] [2023-11-12 02:06:56,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184329366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:56,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:06:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211469084] [2023-11-12 02:06:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:06:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:06:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:06:58,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 388 [2023-11-12 02:06:58,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 231.77777777777777) internal successors, (2086), 9 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:58,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:58,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 388 [2023-11-12 02:06:58,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:59,742 INFO L124 PetriNetUnfolderBase]: 2871/5583 cut-off events. [2023-11-12 02:06:59,743 INFO L125 PetriNetUnfolderBase]: For 9613/9789 co-relation queries the response was YES. [2023-11-12 02:06:59,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18256 conditions, 5583 events. 2871/5583 cut-off events. For 9613/9789 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 35234 event pairs, 659 based on Foata normal form. 69/5058 useless extension candidates. Maximal degree in co-relation 18240. Up to 2294 conditions per place. [2023-11-12 02:06:59,804 INFO L140 encePairwiseOnDemand]: 382/388 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2023-11-12 02:06:59,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2023-11-12 02:06:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:06:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:06:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1759 transitions. [2023-11-12 02:06:59,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6476435935198822 [2023-11-12 02:06:59,815 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1759 transitions. [2023-11-12 02:06:59,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1759 transitions. [2023-11-12 02:06:59,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:59,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1759 transitions. [2023-11-12 02:06:59,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 251.28571428571428) internal successors, (1759), 7 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:59,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 388.0) internal successors, (3104), 8 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:59,832 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 388.0) internal successors, (3104), 8 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:59,832 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1759 transitions. [2023-11-12 02:06:59,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2023-11-12 02:06:59,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-11-12 02:06:59,916 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2023-11-12 02:06:59,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=120} [2023-11-12 02:06:59,919 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2023-11-12 02:06:59,919 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2023-11-12 02:06:59,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 231.77777777777777) internal successors, (2086), 9 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:06:59,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:59,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:59,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:06:59,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:06:59,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:59,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1898522381, now seen corresponding path program 1 times [2023-11-12 02:06:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:59,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956292061] [2023-11-12 02:06:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:00,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:00,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956292061] [2023-11-12 02:07:00,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956292061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:00,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:00,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:07:00,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776561483] [2023-11-12 02:07:00,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:00,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:07:00,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:00,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:07:00,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:07:00,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 388 [2023-11-12 02:07:00,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 120 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:00,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:00,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 388 [2023-11-12 02:07:00,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:03,882 INFO L124 PetriNetUnfolderBase]: 8725/14378 cut-off events. [2023-11-12 02:07:03,883 INFO L125 PetriNetUnfolderBase]: For 45845/46803 co-relation queries the response was YES. [2023-11-12 02:07:03,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51070 conditions, 14378 events. 8725/14378 cut-off events. For 45845/46803 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 93362 event pairs, 1246 based on Foata normal form. 209/13333 useless extension candidates. Maximal degree in co-relation 51057. Up to 9669 conditions per place. [2023-11-12 02:07:04,029 INFO L140 encePairwiseOnDemand]: 378/388 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2023-11-12 02:07:04,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2023-11-12 02:07:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:07:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:07:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1469 transitions. [2023-11-12 02:07:04,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6310137457044673 [2023-11-12 02:07:04,036 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1469 transitions. [2023-11-12 02:07:04,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1469 transitions. [2023-11-12 02:07:04,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:04,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1469 transitions. [2023-11-12 02:07:04,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.83333333333334) internal successors, (1469), 6 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:04,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:04,048 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:04,049 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1469 transitions. [2023-11-12 02:07:04,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2023-11-12 02:07:04,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-12 02:07:04,106 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2023-11-12 02:07:04,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3361, PETRI_PLACES=103, PETRI_TRANSITIONS=316} [2023-11-12 02:07:04,109 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2023-11-12 02:07:04,113 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2023-11-12 02:07:04,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:04,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:04,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:04,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:07:04,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:07:04,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:04,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1471104462, now seen corresponding path program 1 times [2023-11-12 02:07:04,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:04,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54203933] [2023-11-12 02:07:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:04,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:04,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54203933] [2023-11-12 02:07:04,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54203933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:04,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:04,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:07:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794679991] [2023-11-12 02:07:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:07:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:07:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:07:05,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 388 [2023-11-12 02:07:05,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 316 transitions, 3361 flow. Second operand has 9 states, 9 states have (on average 234.44444444444446) internal successors, (2110), 9 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:05,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:05,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 388 [2023-11-12 02:07:05,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:08,254 INFO L124 PetriNetUnfolderBase]: 8175/13995 cut-off events. [2023-11-12 02:07:08,255 INFO L125 PetriNetUnfolderBase]: For 71154/72535 co-relation queries the response was YES. [2023-11-12 02:07:08,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60657 conditions, 13995 events. 8175/13995 cut-off events. For 71154/72535 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 94516 event pairs, 682 based on Foata normal form. 841/13849 useless extension candidates. Maximal degree in co-relation 60640. Up to 7551 conditions per place. [2023-11-12 02:07:08,418 INFO L140 encePairwiseOnDemand]: 381/388 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2023-11-12 02:07:08,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2023-11-12 02:07:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:07:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:07:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1913 transitions. [2023-11-12 02:07:08,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6163015463917526 [2023-11-12 02:07:08,539 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1913 transitions. [2023-11-12 02:07:08,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1913 transitions. [2023-11-12 02:07:08,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:08,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1913 transitions. [2023-11-12 02:07:08,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 239.125) internal successors, (1913), 8 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:08,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 388.0) internal successors, (3492), 9 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:08,571 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 388.0) internal successors, (3492), 9 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:08,579 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1913 transitions. [2023-11-12 02:07:08,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2023-11-12 02:07:08,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:07:08,719 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2023-11-12 02:07:08,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=3307, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3331, PETRI_PLACES=108, PETRI_TRANSITIONS=315} [2023-11-12 02:07:08,721 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2023-11-12 02:07:08,721 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2023-11-12 02:07:08,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 234.44444444444446) internal successors, (2110), 9 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:08,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:08,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:08,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:07:08,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:07:08,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1753788163, now seen corresponding path program 1 times [2023-11-12 02:07:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312825167] [2023-11-12 02:07:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:08,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:09,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312825167] [2023-11-12 02:07:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312825167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:09,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:07:09,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425448702] [2023-11-12 02:07:09,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:09,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:07:09,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:07:09,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:07:09,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 388 [2023-11-12 02:07:09,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 315 transitions, 3331 flow. Second operand has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:09,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:09,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 388 [2023-11-12 02:07:09,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:12,795 INFO L124 PetriNetUnfolderBase]: 11225/17818 cut-off events. [2023-11-12 02:07:12,796 INFO L125 PetriNetUnfolderBase]: For 115971/117523 co-relation queries the response was YES. [2023-11-12 02:07:12,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78526 conditions, 17818 events. 11225/17818 cut-off events. For 115971/117523 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 111941 event pairs, 1487 based on Foata normal form. 334/16949 useless extension candidates. Maximal degree in co-relation 78509. Up to 12037 conditions per place. [2023-11-12 02:07:12,974 INFO L140 encePairwiseOnDemand]: 379/388 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2023-11-12 02:07:12,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2023-11-12 02:07:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:07:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:07:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-12 02:07:12,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6284364261168385 [2023-11-12 02:07:12,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-12 02:07:12,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-12 02:07:12,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:12,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-12 02:07:12,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:12,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:12,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:12,993 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1463 transitions. [2023-11-12 02:07:12,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2023-11-12 02:07:13,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:07:13,097 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2023-11-12 02:07:13,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5699, PETRI_PLACES=112, PETRI_TRANSITIONS=463} [2023-11-12 02:07:13,100 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2023-11-12 02:07:13,101 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2023-11-12 02:07:13,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:13,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:13,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:13,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:07:13,102 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:07:13,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash -190296551, now seen corresponding path program 1 times [2023-11-12 02:07:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641509131] [2023-11-12 02:07:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:13,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:13,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:13,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641509131] [2023-11-12 02:07:13,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641509131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:13,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:13,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:07:13,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141430884] [2023-11-12 02:07:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:13,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:07:13,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:13,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:07:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:07:14,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 388 [2023-11-12 02:07:14,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 463 transitions, 5699 flow. Second operand has 9 states, 9 states have (on average 234.66666666666666) internal successors, (2112), 9 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:14,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:14,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 388 [2023-11-12 02:07:14,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:18,282 INFO L124 PetriNetUnfolderBase]: 11012/17784 cut-off events. [2023-11-12 02:07:18,282 INFO L125 PetriNetUnfolderBase]: For 144467/145957 co-relation queries the response was YES. [2023-11-12 02:07:18,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88190 conditions, 17784 events. 11012/17784 cut-off events. For 144467/145957 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 114305 event pairs, 1043 based on Foata normal form. 414/17130 useless extension candidates. Maximal degree in co-relation 88169. Up to 10378 conditions per place. [2023-11-12 02:07:18,576 INFO L140 encePairwiseOnDemand]: 381/388 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2023-11-12 02:07:18,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2023-11-12 02:07:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:07:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:07:18,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1909 transitions. [2023-11-12 02:07:18,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6150128865979382 [2023-11-12 02:07:18,590 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1909 transitions. [2023-11-12 02:07:18,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1909 transitions. [2023-11-12 02:07:18,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:18,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1909 transitions. [2023-11-12 02:07:18,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 238.625) internal successors, (1909), 8 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:18,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 388.0) internal successors, (3492), 9 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:18,611 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 388.0) internal successors, (3492), 9 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:18,612 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1909 transitions. [2023-11-12 02:07:18,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2023-11-12 02:07:19,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2023-11-12 02:07:19,045 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2023-11-12 02:07:19,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5393, PETRI_PLACES=117, PETRI_TRANSITIONS=462} [2023-11-12 02:07:19,051 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2023-11-12 02:07:19,052 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2023-11-12 02:07:19,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 234.66666666666666) internal successors, (2112), 9 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:19,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:19,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:19,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:07:19,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:07:19,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:19,054 INFO L85 PathProgramCache]: Analyzing trace with hash -448487609, now seen corresponding path program 1 times [2023-11-12 02:07:19,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:19,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989211132] [2023-11-12 02:07:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:19,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:19,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:19,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989211132] [2023-11-12 02:07:19,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989211132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:19,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:19,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:07:19,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734515479] [2023-11-12 02:07:19,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:19,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:07:19,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:19,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:07:19,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:07:20,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 388 [2023-11-12 02:07:20,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 462 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 238.16666666666666) internal successors, (1429), 6 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:20,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:20,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 388 [2023-11-12 02:07:20,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand