./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU --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 eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:55,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:55,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:01:55,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:55,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:55,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:55,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:55,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:55,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:55,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:55,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:55,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:55,559 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:55,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:55,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:01:55,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:55,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:55,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:55,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:55,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:01:55,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:55,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:01:55,568 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:01:55,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:55,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:55,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:55,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:55,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:55,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:55,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:55,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:55,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:55,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:55,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:55,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:01:55,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:55,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:01:55,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:55,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:55,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:55,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:55,590 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_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaeb1d72262bd1e189945b98598b3acb68c08676109949c39074605b8c62cb69 [2024-10-31 22:01:55,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:55,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:55,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:55,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:55,973 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:55,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/reorder_2.i Unable to find full path for "g++" [2024-10-31 22:01:58,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:59,087 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:59,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/sv-benchmarks/c/pthread/reorder_2.i [2024-10-31 22:01:59,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/data/3c2be0e9f/c398d436860c49d9a248cf4ca6e276fd/FLAGf82ff9251 [2024-10-31 22:01:59,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/data/3c2be0e9f/c398d436860c49d9a248cf4ca6e276fd [2024-10-31 22:01:59,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:59,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:59,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:59,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:59,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:59,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:59" (1/1) ... [2024-10-31 22:01:59,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f52eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:59, skipping insertion in model container [2024-10-31 22:01:59,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:59" (1/1) ... [2024-10-31 22:01:59,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:00,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:00,208 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:00,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:00,468 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:00,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00 WrapperNode [2024-10-31 22:02:00,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:00,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:00,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:00,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:00,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,584 INFO L138 Inliner]: procedures = 372, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 212 [2024-10-31 22:02:00,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:00,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:00,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:00,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:00,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:00,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:00,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:00,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:00,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (1/1) ... [2024-10-31 22:02:00,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:00,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:00,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc557cb-ff27-48b7-89a5-87222e5bdd73/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:02:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:02:00,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:02:00,831 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-31 22:02:00,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-31 22:02:00,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:02:00,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:00,832 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-31 22:02:00,832 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-31 22:02:00,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:02:00,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:00,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:00,836 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:02:01,099 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:01,102 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:01,715 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:02:01,715 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:01,796 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:01,797 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:02:01,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:01 BoogieIcfgContainer [2024-10-31 22:02:01,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:01,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:01,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:01,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:01,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:59" (1/3) ... [2024-10-31 22:02:01,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4d912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:01, skipping insertion in model container [2024-10-31 22:02:01,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:00" (2/3) ... [2024-10-31 22:02:01,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4d912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:01, skipping insertion in model container [2024-10-31 22:02:01,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:01" (3/3) ... [2024-10-31 22:02:01,818 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2024-10-31 22:02:01,839 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:01,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-31 22:02:01,840 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:02:01,952 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:02:02,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 245 transitions, 510 flow [2024-10-31 22:02:02,224 INFO L124 PetriNetUnfolderBase]: 39/521 cut-off events. [2024-10-31 22:02:02,225 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:02:02,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 521 events. 39/521 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2077 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 277. Up to 8 conditions per place. [2024-10-31 22:02:02,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 245 transitions, 510 flow [2024-10-31 22:02:02,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 245 transitions, 510 flow [2024-10-31 22:02:02,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:02,286 INFO L333 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, 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;@64d7b45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:02,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-31 22:02:02,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:02,293 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-31 22:02:02,293 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:02,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:02,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:02,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:02,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1619514553, now seen corresponding path program 1 times [2024-10-31 22:02:02,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:02,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991464483] [2024-10-31 22:02:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:02,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:02,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:02,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991464483] [2024-10-31 22:02:02,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991464483] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:02,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:02,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:02,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083112330] [2024-10-31 22:02:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:02,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:02,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:02,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:02,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:02,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-31 22:02:02,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 245 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:02,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:02,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-31 22:02:02,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:02,986 INFO L124 PetriNetUnfolderBase]: 63/811 cut-off events. [2024-10-31 22:02:02,986 INFO L125 PetriNetUnfolderBase]: For 66/118 co-relation queries the response was YES. [2024-10-31 22:02:02,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 811 events. 63/811 cut-off events. For 66/118 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4183 event pairs, 50 based on Foata normal form. 67/749 useless extension candidates. Maximal degree in co-relation 575. Up to 128 conditions per place. [2024-10-31 22:02:02,997 INFO L140 encePairwiseOnDemand]: 224/245 looper letters, 18 selfloop transitions, 1 changer transitions 6/223 dead transitions. [2024-10-31 22:02:02,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 223 transitions, 504 flow [2024-10-31 22:02:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:03,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2024-10-31 22:02:03,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889795918367347 [2024-10-31 22:02:03,028 INFO L175 Difference]: Start difference. First operand has 232 places, 245 transitions, 510 flow. Second operand 3 states and 654 transitions. [2024-10-31 22:02:03,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 223 transitions, 504 flow [2024-10-31 22:02:03,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 223 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:03,046 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 456 flow [2024-10-31 22:02:03,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-10-31 22:02:03,055 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -8 predicate places. [2024-10-31 22:02:03,056 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 456 flow [2024-10-31 22:02:03,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:03,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:03,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:03,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:03,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1334590845, now seen corresponding path program 1 times [2024-10-31 22:02:03,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:03,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590675463] [2024-10-31 22:02:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:03,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:03,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590675463] [2024-10-31 22:02:03,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590675463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:03,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:03,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:03,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511181163] [2024-10-31 22:02:03,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:03,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-31 22:02:03,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:03,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-31 22:02:03,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:03,652 INFO L124 PetriNetUnfolderBase]: 60/1400 cut-off events. [2024-10-31 22:02:03,652 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-31 22:02:03,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 1400 events. 60/1400 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8932 event pairs, 28 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 754. Up to 51 conditions per place. [2024-10-31 22:02:03,666 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/226 dead transitions. [2024-10-31 22:02:03,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 226 transitions, 536 flow [2024-10-31 22:02:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-31 22:02:03,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-31 22:02:03,672 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 456 flow. Second operand 3 states and 668 transitions. [2024-10-31 22:02:03,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 226 transitions, 536 flow [2024-10-31 22:02:03,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 226 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:03,684 INFO L231 Difference]: Finished difference. Result has 218 places, 216 transitions, 455 flow [2024-10-31 22:02:03,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=218, PETRI_TRANSITIONS=216} [2024-10-31 22:02:03,685 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -14 predicate places. [2024-10-31 22:02:03,686 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 216 transitions, 455 flow [2024-10-31 22:02:03,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:03,688 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:03,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:03,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:03,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1577414619, now seen corresponding path program 1 times [2024-10-31 22:02:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:03,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175063230] [2024-10-31 22:02:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:03,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:03,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175063230] [2024-10-31 22:02:03,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175063230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:03,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:03,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:03,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640001102] [2024-10-31 22:02:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:03,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:03,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:03,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 245 [2024-10-31 22:02:03,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 216 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:03,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:03,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 245 [2024-10-31 22:02:03,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:04,298 INFO L124 PetriNetUnfolderBase]: 232/1677 cut-off events. [2024-10-31 22:02:04,299 INFO L125 PetriNetUnfolderBase]: For 230/534 co-relation queries the response was YES. [2024-10-31 22:02:04,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1677 events. 232/1677 cut-off events. For 230/534 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11013 event pairs, 52 based on Foata normal form. 19/1489 useless extension candidates. Maximal degree in co-relation 1100. Up to 355 conditions per place. [2024-10-31 22:02:04,309 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 15 selfloop transitions, 1 changer transitions 24/220 dead transitions. [2024-10-31 22:02:04,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 220 transitions, 529 flow [2024-10-31 22:02:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:04,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:04,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2024-10-31 22:02:04,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8653061224489796 [2024-10-31 22:02:04,313 INFO L175 Difference]: Start difference. First operand has 218 places, 216 transitions, 455 flow. Second operand 3 states and 636 transitions. [2024-10-31 22:02:04,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 220 transitions, 529 flow [2024-10-31 22:02:04,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 220 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:04,320 INFO L231 Difference]: Finished difference. Result has 213 places, 192 transitions, 408 flow [2024-10-31 22:02:04,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=213, PETRI_TRANSITIONS=192} [2024-10-31 22:02:04,322 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -19 predicate places. [2024-10-31 22:02:04,322 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 192 transitions, 408 flow [2024-10-31 22:02:04,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:04,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:04,323 INFO L204 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] [2024-10-31 22:02:04,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:04,327 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:04,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:04,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2045685338, now seen corresponding path program 1 times [2024-10-31 22:02:04,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:04,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452955685] [2024-10-31 22:02:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:04,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:04,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:04,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452955685] [2024-10-31 22:02:04,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452955685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:04,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:04,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:04,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801753950] [2024-10-31 22:02:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:04,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:04,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:04,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 245 [2024-10-31 22:02:04,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 192 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:04,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:04,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 245 [2024-10-31 22:02:04,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:04,818 INFO L124 PetriNetUnfolderBase]: 184/1638 cut-off events. [2024-10-31 22:02:04,819 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-31 22:02:04,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1638 events. 184/1638 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11150 event pairs, 156 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 1838. Up to 362 conditions per place. [2024-10-31 22:02:04,830 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2024-10-31 22:02:04,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 189 transitions, 442 flow [2024-10-31 22:02:04,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-10-31 22:02:04,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693877551020408 [2024-10-31 22:02:04,835 INFO L175 Difference]: Start difference. First operand has 213 places, 192 transitions, 408 flow. Second operand 3 states and 639 transitions. [2024-10-31 22:02:04,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 189 transitions, 442 flow [2024-10-31 22:02:04,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 189 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:04,845 INFO L231 Difference]: Finished difference. Result has 193 places, 189 transitions, 409 flow [2024-10-31 22:02:04,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=193, PETRI_TRANSITIONS=189} [2024-10-31 22:02:04,847 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -39 predicate places. [2024-10-31 22:02:04,849 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 189 transitions, 409 flow [2024-10-31 22:02:04,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:04,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:04,850 INFO L204 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] [2024-10-31 22:02:04,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:04,850 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:04,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:04,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1950122769, now seen corresponding path program 1 times [2024-10-31 22:02:04,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:04,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381813601] [2024-10-31 22:02:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:04,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:04,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:04,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381813601] [2024-10-31 22:02:04,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381813601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:04,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:04,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:04,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309830059] [2024-10-31 22:02:04,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:04,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:04,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:04,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:04,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-31 22:02:05,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:05,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-31 22:02:05,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:05,298 INFO L124 PetriNetUnfolderBase]: 124/1385 cut-off events. [2024-10-31 22:02:05,298 INFO L125 PetriNetUnfolderBase]: For 148/252 co-relation queries the response was YES. [2024-10-31 22:02:05,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1385 events. 124/1385 cut-off events. For 148/252 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8889 event pairs, 96 based on Foata normal form. 0/1196 useless extension candidates. Maximal degree in co-relation 868. Up to 250 conditions per place. [2024-10-31 22:02:05,306 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 17 selfloop transitions, 2 changer transitions 3/188 dead transitions. [2024-10-31 22:02:05,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 188 transitions, 447 flow [2024-10-31 22:02:05,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-31 22:02:05,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-31 22:02:05,309 INFO L175 Difference]: Start difference. First operand has 193 places, 189 transitions, 409 flow. Second operand 3 states and 642 transitions. [2024-10-31 22:02:05,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 188 transitions, 447 flow [2024-10-31 22:02:05,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 188 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:05,314 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 405 flow [2024-10-31 22:02:05,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2024-10-31 22:02:05,315 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -38 predicate places. [2024-10-31 22:02:05,318 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 405 flow [2024-10-31 22:02:05,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:05,319 INFO L204 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] [2024-10-31 22:02:05,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:05,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:05,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash 737887062, now seen corresponding path program 1 times [2024-10-31 22:02:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123494686] [2024-10-31 22:02:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:05,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:05,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123494686] [2024-10-31 22:02:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123494686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:05,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519231906] [2024-10-31 22:02:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:05,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:05,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:05,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:05,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 245 [2024-10-31 22:02:05,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:05,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 245 [2024-10-31 22:02:05,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:05,754 INFO L124 PetriNetUnfolderBase]: 60/1200 cut-off events. [2024-10-31 22:02:05,755 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-31 22:02:05,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 1200 events. 60/1200 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7114 event pairs, 28 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 696. Up to 51 conditions per place. [2024-10-31 22:02:05,763 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 21 selfloop transitions, 1 changer transitions 0/194 dead transitions. [2024-10-31 22:02:05,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 194 transitions, 485 flow [2024-10-31 22:02:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-10-31 22:02:05,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908843537414966 [2024-10-31 22:02:05,767 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 405 flow. Second operand 3 states and 668 transitions. [2024-10-31 22:02:05,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 194 transitions, 485 flow [2024-10-31 22:02:05,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:02:05,775 INFO L231 Difference]: Finished difference. Result has 190 places, 184 transitions, 401 flow [2024-10-31 22:02:05,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=190, PETRI_TRANSITIONS=184} [2024-10-31 22:02:05,779 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-31 22:02:05,780 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 184 transitions, 401 flow [2024-10-31 22:02:05,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:05,781 INFO L204 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] [2024-10-31 22:02:05,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:05,782 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:05,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash 517699852, now seen corresponding path program 1 times [2024-10-31 22:02:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:05,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016546095] [2024-10-31 22:02:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:05,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:05,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016546095] [2024-10-31 22:02:05,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016546095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:05,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:05,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434331131] [2024-10-31 22:02:05,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:05,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:05,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:05,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 245 [2024-10-31 22:02:05,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 184 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:05,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:05,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 245 [2024-10-31 22:02:05,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:06,188 INFO L124 PetriNetUnfolderBase]: 120/1323 cut-off events. [2024-10-31 22:02:06,189 INFO L125 PetriNetUnfolderBase]: For 154/258 co-relation queries the response was YES. [2024-10-31 22:02:06,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1323 events. 120/1323 cut-off events. For 154/258 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8418 event pairs, 92 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 835. Up to 234 conditions per place. [2024-10-31 22:02:06,196 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 18 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-10-31 22:02:06,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 183 transitions, 439 flow [2024-10-31 22:02:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2024-10-31 22:02:06,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8721088435374149 [2024-10-31 22:02:06,200 INFO L175 Difference]: Start difference. First operand has 190 places, 184 transitions, 401 flow. Second operand 3 states and 641 transitions. [2024-10-31 22:02:06,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 183 transitions, 439 flow [2024-10-31 22:02:06,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 183 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:06,205 INFO L231 Difference]: Finished difference. Result has 190 places, 183 transitions, 402 flow [2024-10-31 22:02:06,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2024-10-31 22:02:06,206 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-10-31 22:02:06,207 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 402 flow [2024-10-31 22:02:06,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:06,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:06,209 INFO L204 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] [2024-10-31 22:02:06,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:06,209 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:06,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:06,210 INFO L85 PathProgramCache]: Analyzing trace with hash 36510914, now seen corresponding path program 1 times [2024-10-31 22:02:06,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:06,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715989088] [2024-10-31 22:02:06,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:06,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:06,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:06,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715989088] [2024-10-31 22:02:06,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715989088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:06,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:06,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:06,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942216385] [2024-10-31 22:02:06,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:06,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:06,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:06,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:06,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:06,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 245 [2024-10-31 22:02:06,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:06,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:06,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 245 [2024-10-31 22:02:06,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:06,539 INFO L124 PetriNetUnfolderBase]: 58/1187 cut-off events. [2024-10-31 22:02:06,539 INFO L125 PetriNetUnfolderBase]: For 166/342 co-relation queries the response was YES. [2024-10-31 22:02:06,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1388 conditions, 1187 events. 58/1187 cut-off events. For 166/342 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7013 event pairs, 28 based on Foata normal form. 2/1046 useless extension candidates. Maximal degree in co-relation 706. Up to 110 conditions per place. [2024-10-31 22:02:06,547 INFO L140 encePairwiseOnDemand]: 243/245 looper letters, 16 selfloop transitions, 0 changer transitions 1/182 dead transitions. [2024-10-31 22:02:06,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 182 transitions, 431 flow [2024-10-31 22:02:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:06,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2024-10-31 22:02:06,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2024-10-31 22:02:06,551 INFO L175 Difference]: Start difference. First operand has 190 places, 183 transitions, 402 flow. Second operand 3 states and 642 transitions. [2024-10-31 22:02:06,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 182 transitions, 431 flow [2024-10-31 22:02:06,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 423 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 22:02:06,556 INFO L231 Difference]: Finished difference. Result has 189 places, 181 transitions, 389 flow [2024-10-31 22:02:06,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=189, PETRI_TRANSITIONS=181} [2024-10-31 22:02:06,558 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -43 predicate places. [2024-10-31 22:02:06,558 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 181 transitions, 389 flow [2024-10-31 22:02:06,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:06,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:06,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:06,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:06,560 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:06,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1807168628, now seen corresponding path program 1 times [2024-10-31 22:02:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228266711] [2024-10-31 22:02:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:07,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228266711] [2024-10-31 22:02:07,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228266711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:07,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:07,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:02:07,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142251981] [2024-10-31 22:02:07,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:07,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:07,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:07,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:07,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 245 [2024-10-31 22:02:07,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 181 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:07,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:07,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 245 [2024-10-31 22:02:07,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:08,450 INFO L124 PetriNetUnfolderBase]: 650/3747 cut-off events. [2024-10-31 22:02:08,450 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2024-10-31 22:02:08,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5281 conditions, 3747 events. 650/3747 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 32704 event pairs, 296 based on Foata normal form. 0/3356 useless extension candidates. Maximal degree in co-relation 5275. Up to 1255 conditions per place. [2024-10-31 22:02:08,478 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 44 selfloop transitions, 5 changer transitions 4/188 dead transitions. [2024-10-31 22:02:08,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 188 transitions, 503 flow [2024-10-31 22:02:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:02:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2024-10-31 22:02:08,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7816326530612245 [2024-10-31 22:02:08,483 INFO L175 Difference]: Start difference. First operand has 189 places, 181 transitions, 389 flow. Second operand 6 states and 1149 transitions. [2024-10-31 22:02:08,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 188 transitions, 503 flow [2024-10-31 22:02:08,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 501 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:08,488 INFO L231 Difference]: Finished difference. Result has 191 places, 176 transitions, 387 flow [2024-10-31 22:02:08,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=176} [2024-10-31 22:02:08,490 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -41 predicate places. [2024-10-31 22:02:08,490 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 176 transitions, 387 flow [2024-10-31 22:02:08,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:08,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:08,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:02:08,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:08,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 34772814, now seen corresponding path program 1 times [2024-10-31 22:02:08,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726098880] [2024-10-31 22:02:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726098880] [2024-10-31 22:02:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726098880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707549150] [2024-10-31 22:02:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:08,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:08,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:08,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:08,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:08,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 245 [2024-10-31 22:02:08,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 176 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:08,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:08,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 245 [2024-10-31 22:02:08,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:09,138 INFO L124 PetriNetUnfolderBase]: 159/1512 cut-off events. [2024-10-31 22:02:09,138 INFO L125 PetriNetUnfolderBase]: For 114/216 co-relation queries the response was YES. [2024-10-31 22:02:09,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 1512 events. 159/1512 cut-off events. For 114/216 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10354 event pairs, 120 based on Foata normal form. 11/1351 useless extension candidates. Maximal degree in co-relation 1963. Up to 209 conditions per place. [2024-10-31 22:02:09,151 INFO L140 encePairwiseOnDemand]: 233/245 looper letters, 42 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2024-10-31 22:02:09,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 204 transitions, 571 flow [2024-10-31 22:02:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:02:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 866 transitions. [2024-10-31 22:02:09,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8836734693877552 [2024-10-31 22:02:09,155 INFO L175 Difference]: Start difference. First operand has 191 places, 176 transitions, 387 flow. Second operand 4 states and 866 transitions. [2024-10-31 22:02:09,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 204 transitions, 571 flow [2024-10-31 22:02:09,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 204 transitions, 561 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:02:09,161 INFO L231 Difference]: Finished difference. Result has 187 places, 184 transitions, 451 flow [2024-10-31 22:02:09,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=187, PETRI_TRANSITIONS=184} [2024-10-31 22:02:09,163 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -45 predicate places. [2024-10-31 22:02:09,163 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 184 transitions, 451 flow [2024-10-31 22:02:09,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:09,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:09,165 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:09,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:02:09,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-31 22:02:09,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2013852745, now seen corresponding path program 1 times [2024-10-31 22:02:09,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:09,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497841772] [2024-10-31 22:02:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:09,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:09,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:09,297 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:02:09,299 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-31 22:02:09,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-31 22:02:09,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-31 22:02:09,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-31 22:02:09,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-31 22:02:09,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-31 22:02:09,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-31 22:02:09,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-31 22:02:09,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-31 22:02:09,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-31 22:02:09,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-31 22:02:09,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-31 22:02:09,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-31 22:02:09,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-31 22:02:09,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-31 22:02:09,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-31 22:02:09,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-31 22:02:09,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-31 22:02:09,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-31 22:02:09,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-31 22:02:09,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-31 22:02:09,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-31 22:02:09,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-31 22:02:09,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-31 22:02:09,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-31 22:02:09,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-31 22:02:09,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-31 22:02:09,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 33 remaining) [2024-10-31 22:02:09,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-31 22:02:09,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-31 22:02:09,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-31 22:02:09,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-31 22:02:09,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-31 22:02:09,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:02:09,315 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:09,323 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:02:09,323 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:02:09,385 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-31 22:02:09,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 278 transitions, 600 flow [2024-10-31 22:02:09,696 INFO L124 PetriNetUnfolderBase]: 155/1630 cut-off events. [2024-10-31 22:02:09,696 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-31 22:02:09,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1630 events. 155/1630 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9460 event pairs, 1 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 942. Up to 32 conditions per place. [2024-10-31 22:02:09,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 278 transitions, 600 flow [2024-10-31 22:02:09,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 278 transitions, 600 flow [2024-10-31 22:02:09,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:09,724 INFO L333 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, 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;@64d7b45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:09,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-31 22:02:09,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:09,727 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-31 22:02:09,727 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:09,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:09,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:09,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-31 22:02:09,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -226736677, now seen corresponding path program 1 times [2024-10-31 22:02:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682918999] [2024-10-31 22:02:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:09,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:09,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682918999] [2024-10-31 22:02:09,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682918999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:09,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:09,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:09,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270676811] [2024-10-31 22:02:09,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:09,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:09,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:09,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:09,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:09,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 278 [2024-10-31 22:02:09,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 278 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:09,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:09,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 278 [2024-10-31 22:02:09,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:12,527 INFO L124 PetriNetUnfolderBase]: 2218/10556 cut-off events. [2024-10-31 22:02:12,527 INFO L125 PetriNetUnfolderBase]: For 2678/5747 co-relation queries the response was YES. [2024-10-31 22:02:12,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14543 conditions, 10556 events. 2218/10556 cut-off events. For 2678/5747 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 112852 event pairs, 1905 based on Foata normal form. 1203/10033 useless extension candidates. Maximal degree in co-relation 9437. Up to 3249 conditions per place. [2024-10-31 22:02:12,661 INFO L140 encePairwiseOnDemand]: 251/278 looper letters, 28 selfloop transitions, 1 changer transitions 4/248 dead transitions. [2024-10-31 22:02:12,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 248 transitions, 598 flow [2024-10-31 22:02:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-10-31 22:02:12,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2024-10-31 22:02:12,665 INFO L175 Difference]: Start difference. First operand has 263 places, 278 transitions, 600 flow. Second operand 3 states and 718 transitions. [2024-10-31 22:02:12,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 248 transitions, 598 flow [2024-10-31 22:02:12,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 248 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:12,674 INFO L231 Difference]: Finished difference. Result has 249 places, 244 transitions, 534 flow [2024-10-31 22:02:12,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=249, PETRI_TRANSITIONS=244} [2024-10-31 22:02:12,676 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -14 predicate places. [2024-10-31 22:02:12,676 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 244 transitions, 534 flow [2024-10-31 22:02:12,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:12,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:12,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:12,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:02:12,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-31 22:02:12,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1561032317, now seen corresponding path program 1 times [2024-10-31 22:02:12,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:12,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766760776] [2024-10-31 22:02:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:12,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:12,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766760776] [2024-10-31 22:02:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766760776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:12,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:12,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:12,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441697035] [2024-10-31 22:02:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:12,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:12,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:12,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 278 [2024-10-31 22:02:12,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 244 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:12,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:12,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 278 [2024-10-31 22:02:12,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:16,959 INFO L124 PetriNetUnfolderBase]: 2492/17972 cut-off events. [2024-10-31 22:02:16,959 INFO L125 PetriNetUnfolderBase]: For 5620/27496 co-relation queries the response was YES. [2024-10-31 22:02:17,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22939 conditions, 17972 events. 2492/17972 cut-off events. For 5620/27496 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 226478 event pairs, 1706 based on Foata normal form. 0/14727 useless extension candidates. Maximal degree in co-relation 11439. Up to 1670 conditions per place. [2024-10-31 22:02:17,145 INFO L140 encePairwiseOnDemand]: 276/278 looper letters, 41 selfloop transitions, 1 changer transitions 0/263 dead transitions. [2024-10-31 22:02:17,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 263 transitions, 696 flow [2024-10-31 22:02:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2024-10-31 22:02:17,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882494004796163 [2024-10-31 22:02:17,148 INFO L175 Difference]: Start difference. First operand has 249 places, 244 transitions, 534 flow. Second operand 3 states and 736 transitions. [2024-10-31 22:02:17,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 263 transitions, 696 flow [2024-10-31 22:02:17,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 263 transitions, 695 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:02:17,158 INFO L231 Difference]: Finished difference. Result has 245 places, 243 transitions, 533 flow [2024-10-31 22:02:17,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=245, PETRI_TRANSITIONS=243} [2024-10-31 22:02:17,161 INFO L277 CegarLoopForPetriNet]: 263 programPoint places, -18 predicate places. [2024-10-31 22:02:17,161 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 243 transitions, 533 flow [2024-10-31 22:02:17,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:17,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:17,162 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:17,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:02:17,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-31 22:02:17,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1147303993, now seen corresponding path program 1 times [2024-10-31 22:02:17,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:17,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786651188] [2024-10-31 22:02:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:17,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:17,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786651188] [2024-10-31 22:02:17,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786651188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:17,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:17,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:17,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502476705] [2024-10-31 22:02:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:17,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:17,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:17,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 278 [2024-10-31 22:02:17,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 243 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:17,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:17,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 278 [2024-10-31 22:02:17,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand