./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --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_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/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_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/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_388982c6-fc13-40b4-b1d4-8deb195246fb/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:51,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:51,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:04:51,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:51,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:51,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:51,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:51,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:51,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:51,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:51,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:51,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:51,906 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:51,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:51,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:51,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:51,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:51,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:51,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:51,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:51,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:51,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:51,916 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:04:51,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:51,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:51,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:51,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:51,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:51,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:51,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:51,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:51,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:51,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:51,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:51,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:51,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:51,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:51,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:51,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:51,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:51,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:51,944 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_388982c6-fc13-40b4-b1d4-8deb195246fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2024-10-31 22:04:52,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:52,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:52,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:52,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:52,307 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:52,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c Unable to find full path for "g++" [2024-10-31 22:04:54,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:54,558 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:54,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-10-31 22:04:54,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/data/841ab0e26/6747985f50ea49f9a79cc8f9449c5f27/FLAGc991b5cde [2024-10-31 22:04:54,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/data/841ab0e26/6747985f50ea49f9a79cc8f9449c5f27 [2024-10-31 22:04:54,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:54,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:54,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:54,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:54,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:54,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:54" (1/1) ... [2024-10-31 22:04:54,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bd7549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:54, skipping insertion in model container [2024-10-31 22:04:54,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:54" (1/1) ... [2024-10-31 22:04:54,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:55,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:55,079 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:55,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:55,169 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:55,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55 WrapperNode [2024-10-31 22:04:55,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:55,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:55,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:55,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:55,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,314 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 993 [2024-10-31 22:04:55,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:55,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:55,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:55,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:55,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:55,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:55,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:55,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:55,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (1/1) ... [2024-10-31 22:04:55,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:55,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:55,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_388982c6-fc13-40b4-b1d4-8deb195246fb/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:04:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:04:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:04:55,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:04:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:04:55,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:04:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:04:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:04:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:04:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:04:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:04:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:04:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:04:55,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:55,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:04:55,602 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 22:04:55,805 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:55,807 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:57,394 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:57,395 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:59,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:59,022 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-31 22:04:59,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:59 BoogieIcfgContainer [2024-10-31 22:04:59,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:59,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:59,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:59,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:59,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:54" (1/3) ... [2024-10-31 22:04:59,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fbb104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:59, skipping insertion in model container [2024-10-31 22:04:59,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:55" (2/3) ... [2024-10-31 22:04:59,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fbb104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:59, skipping insertion in model container [2024-10-31 22:04:59,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:59" (3/3) ... [2024-10-31 22:04:59,039 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2024-10-31 22:04:59,060 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:59,060 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 164 error locations. [2024-10-31 22:04:59,060 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:59,349 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:04:59,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 614 places, 626 transitions, 1280 flow [2024-10-31 22:04:59,711 INFO L124 PetriNetUnfolderBase]: 25/622 cut-off events. [2024-10-31 22:04:59,712 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:04:59,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 622 events. 25/622 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1159 event pairs, 0 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 568. Up to 2 conditions per place. [2024-10-31 22:04:59,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 614 places, 626 transitions, 1280 flow [2024-10-31 22:04:59,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 605 transitions, 1234 flow [2024-10-31 22:04:59,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:59,761 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;@1b070889, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:59,762 INFO L334 AbstractCegarLoop]: Starting to check reachability of 300 error locations. [2024-10-31 22:04:59,767 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:59,767 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-31 22:04:59,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:59,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:59,768 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] [2024-10-31 22:04:59,769 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:04:59,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -227247349, now seen corresponding path program 1 times [2024-10-31 22:04:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446209216] [2024-10-31 22:04:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,009 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 22:05:00,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:00,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446209216] [2024-10-31 22:05:00,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446209216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:00,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:00,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893371484] [2024-10-31 22:05:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:00,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:00,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:00,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:00,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:00,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 605 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:00,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:00,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:00,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:01,827 INFO L124 PetriNetUnfolderBase]: 865/3083 cut-off events. [2024-10-31 22:05:01,828 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-10-31 22:05:01,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 3083 events. 865/3083 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 23430 event pairs, 503 based on Foata normal form. 555/3324 useless extension candidates. Maximal degree in co-relation 3569. Up to 1158 conditions per place. [2024-10-31 22:05:01,865 INFO L140 encePairwiseOnDemand]: 475/626 looper letters, 24 selfloop transitions, 2 changer transitions 8/456 dead transitions. [2024-10-31 22:05:01,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 456 transitions, 988 flow [2024-10-31 22:05:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:01,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2024-10-31 22:05:01,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808839190628328 [2024-10-31 22:05:01,894 INFO L175 Difference]: Start difference. First operand has 594 places, 605 transitions, 1234 flow. Second operand 3 states and 1519 transitions. [2024-10-31 22:05:01,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 456 transitions, 988 flow [2024-10-31 22:05:01,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 456 transitions, 972 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-31 22:05:01,917 INFO L231 Difference]: Finished difference. Result has 455 places, 448 transitions, 908 flow [2024-10-31 22:05:01,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=455, PETRI_TRANSITIONS=448} [2024-10-31 22:05:01,926 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -139 predicate places. [2024-10-31 22:05:01,927 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 448 transitions, 908 flow [2024-10-31 22:05:01,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:01,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:01,929 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 22:05:01,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:01,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1560247909, now seen corresponding path program 1 times [2024-10-31 22:05:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:01,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214613470] [2024-10-31 22:05:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:01,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,085 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 22:05:02,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214613470] [2024-10-31 22:05:02,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214613470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:02,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:02,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776802898] [2024-10-31 22:05:02,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:02,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:02,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:02,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:02,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 448 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:02,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:02,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:02,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:03,632 INFO L124 PetriNetUnfolderBase]: 865/3074 cut-off events. [2024-10-31 22:05:03,633 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-31 22:05:03,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 3074 events. 865/3074 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 23423 event pairs, 503 based on Foata normal form. 0/2769 useless extension candidates. Maximal degree in co-relation 4283. Up to 1158 conditions per place. [2024-10-31 22:05:03,661 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 24 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2024-10-31 22:05:03,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 447 transitions, 958 flow [2024-10-31 22:05:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2024-10-31 22:05:03,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7300319488817891 [2024-10-31 22:05:03,666 INFO L175 Difference]: Start difference. First operand has 455 places, 448 transitions, 908 flow. Second operand 3 states and 1371 transitions. [2024-10-31 22:05:03,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 447 transitions, 958 flow [2024-10-31 22:05:03,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 447 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:03,675 INFO L231 Difference]: Finished difference. Result has 446 places, 447 transitions, 906 flow [2024-10-31 22:05:03,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=446, PETRI_TRANSITIONS=447} [2024-10-31 22:05:03,677 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -148 predicate places. [2024-10-31 22:05:03,678 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 447 transitions, 906 flow [2024-10-31 22:05:03,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:03,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:03,679 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, 1] [2024-10-31 22:05:03,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:03,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:03,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1938497711, now seen corresponding path program 1 times [2024-10-31 22:05:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:03,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118601798] [2024-10-31 22:05:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:03,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:03,790 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 22:05:03,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118601798] [2024-10-31 22:05:03,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118601798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:03,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:03,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:03,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422668275] [2024-10-31 22:05:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:03,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:03,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:03,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 447 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:03,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:03,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:03,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:05,309 INFO L124 PetriNetUnfolderBase]: 865/3073 cut-off events. [2024-10-31 22:05:05,309 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-31 22:05:05,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4324 conditions, 3073 events. 865/3073 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 23421 event pairs, 503 based on Foata normal form. 0/2769 useless extension candidates. Maximal degree in co-relation 4274. Up to 1158 conditions per place. [2024-10-31 22:05:05,345 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 24 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2024-10-31 22:05:05,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 446 transitions, 956 flow [2024-10-31 22:05:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2024-10-31 22:05:05,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7300319488817891 [2024-10-31 22:05:05,350 INFO L175 Difference]: Start difference. First operand has 446 places, 447 transitions, 906 flow. Second operand 3 states and 1371 transitions. [2024-10-31 22:05:05,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 446 transitions, 956 flow [2024-10-31 22:05:05,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 446 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:05,362 INFO L231 Difference]: Finished difference. Result has 445 places, 446 transitions, 904 flow [2024-10-31 22:05:05,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=445, PETRI_TRANSITIONS=446} [2024-10-31 22:05:05,364 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -149 predicate places. [2024-10-31 22:05:05,364 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 446 transitions, 904 flow [2024-10-31 22:05:05,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:05,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:05,366 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, 1, 1, 1, 1, 1] [2024-10-31 22:05:05,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:05:05,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:05,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2094399981, now seen corresponding path program 1 times [2024-10-31 22:05:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:05,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883401365] [2024-10-31 22:05:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:05,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,442 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 22:05:05,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883401365] [2024-10-31 22:05:05,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883401365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:05,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:05,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554857124] [2024-10-31 22:05:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:05,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:05,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:05,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:05,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 626 [2024-10-31 22:05:05,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 446 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:05,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:05,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 626 [2024-10-31 22:05:05,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:06,676 INFO L124 PetriNetUnfolderBase]: 1019/2661 cut-off events. [2024-10-31 22:05:06,676 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-10-31 22:05:06,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4128 conditions, 2661 events. 1019/2661 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16225 event pairs, 131 based on Foata normal form. 0/2498 useless extension candidates. Maximal degree in co-relation 4070. Up to 1121 conditions per place. [2024-10-31 22:05:06,697 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 35 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-10-31 22:05:06,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 459 transitions, 1011 flow [2024-10-31 22:05:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1394 transitions. [2024-10-31 22:05:06,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7422790202342918 [2024-10-31 22:05:06,700 INFO L175 Difference]: Start difference. First operand has 445 places, 446 transitions, 904 flow. Second operand 3 states and 1394 transitions. [2024-10-31 22:05:06,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 459 transitions, 1011 flow [2024-10-31 22:05:06,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 459 transitions, 1007 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:06,709 INFO L231 Difference]: Finished difference. Result has 445 places, 446 transitions, 908 flow [2024-10-31 22:05:06,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=445, PETRI_TRANSITIONS=446} [2024-10-31 22:05:06,713 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -149 predicate places. [2024-10-31 22:05:06,713 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 446 transitions, 908 flow [2024-10-31 22:05:06,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:06,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:06,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:06,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:05:06,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:06,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:06,718 INFO L85 PathProgramCache]: Analyzing trace with hash -922300295, now seen corresponding path program 1 times [2024-10-31 22:05:06,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:06,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099556347] [2024-10-31 22:05:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,778 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 22:05:06,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099556347] [2024-10-31 22:05:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099556347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:06,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:06,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390294708] [2024-10-31 22:05:06,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:06,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:06,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 626 [2024-10-31 22:05:06,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 446 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:06,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:06,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 626 [2024-10-31 22:05:06,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:08,263 INFO L124 PetriNetUnfolderBase]: 954/3323 cut-off events. [2024-10-31 22:05:08,263 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-10-31 22:05:08,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4809 conditions, 3323 events. 954/3323 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25637 event pairs, 569 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 3459. Up to 1287 conditions per place. [2024-10-31 22:05:08,294 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 24 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2024-10-31 22:05:08,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 445 transitions, 958 flow [2024-10-31 22:05:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:08,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2024-10-31 22:05:08,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7310969116080938 [2024-10-31 22:05:08,298 INFO L175 Difference]: Start difference. First operand has 445 places, 446 transitions, 908 flow. Second operand 3 states and 1373 transitions. [2024-10-31 22:05:08,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 445 transitions, 958 flow [2024-10-31 22:05:08,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 445 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:08,307 INFO L231 Difference]: Finished difference. Result has 445 places, 445 transitions, 908 flow [2024-10-31 22:05:08,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=445, PETRI_TRANSITIONS=445} [2024-10-31 22:05:08,309 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -149 predicate places. [2024-10-31 22:05:08,309 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 445 transitions, 908 flow [2024-10-31 22:05:08,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:08,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:08,310 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:08,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:08,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:08,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1339123555, now seen corresponding path program 1 times [2024-10-31 22:05:08,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:08,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323432067] [2024-10-31 22:05:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:08,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:08,393 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 22:05:08,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:08,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323432067] [2024-10-31 22:05:08,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323432067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:08,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:08,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:08,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096275227] [2024-10-31 22:05:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:08,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:08,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 626 [2024-10-31 22:05:08,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 445 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:08,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:08,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 626 [2024-10-31 22:05:08,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:10,267 INFO L124 PetriNetUnfolderBase]: 954/3322 cut-off events. [2024-10-31 22:05:10,267 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-10-31 22:05:10,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4774 conditions, 3322 events. 954/3322 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25627 event pairs, 569 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4707. Up to 1285 conditions per place. [2024-10-31 22:05:10,303 INFO L140 encePairwiseOnDemand]: 624/626 looper letters, 23 selfloop transitions, 1 changer transitions 0/444 dead transitions. [2024-10-31 22:05:10,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 444 transitions, 954 flow [2024-10-31 22:05:10,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2024-10-31 22:05:10,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7348242811501597 [2024-10-31 22:05:10,309 INFO L175 Difference]: Start difference. First operand has 445 places, 445 transitions, 908 flow. Second operand 3 states and 1380 transitions. [2024-10-31 22:05:10,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 444 transitions, 954 flow [2024-10-31 22:05:10,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 444 transitions, 950 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:10,320 INFO L231 Difference]: Finished difference. Result has 444 places, 444 transitions, 904 flow [2024-10-31 22:05:10,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=444, PETRI_TRANSITIONS=444} [2024-10-31 22:05:10,322 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -150 predicate places. [2024-10-31 22:05:10,324 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 444 transitions, 904 flow [2024-10-31 22:05:10,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:10,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:10,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:10,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:05:10,327 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:10,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:10,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1931445746, now seen corresponding path program 1 times [2024-10-31 22:05:10,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:10,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617678247] [2024-10-31 22:05:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:11,216 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 22:05:11,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:11,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617678247] [2024-10-31 22:05:11,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617678247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:11,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:11,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704637568] [2024-10-31 22:05:11,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:11,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:11,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 626 [2024-10-31 22:05:11,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 444 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 401.5) internal successors, (2409), 6 states have internal predecessors, (2409), 0 states have call successors, (0), 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 22:05:11,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:11,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 626 [2024-10-31 22:05:11,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:13,042 INFO L124 PetriNetUnfolderBase]: 954/3318 cut-off events. [2024-10-31 22:05:13,043 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-10-31 22:05:13,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4818 conditions, 3318 events. 954/3318 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25628 event pairs, 569 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4752. Up to 1316 conditions per place. [2024-10-31 22:05:13,081 INFO L140 encePairwiseOnDemand]: 602/626 looper letters, 53 selfloop transitions, 20 changer transitions 0/440 dead transitions. [2024-10-31 22:05:13,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 440 transitions, 1042 flow [2024-10-31 22:05:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:05:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:05:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2476 transitions. [2024-10-31 22:05:13,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6592119275825347 [2024-10-31 22:05:13,090 INFO L175 Difference]: Start difference. First operand has 444 places, 444 transitions, 904 flow. Second operand 6 states and 2476 transitions. [2024-10-31 22:05:13,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 440 transitions, 1042 flow [2024-10-31 22:05:13,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 440 transitions, 1041 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:13,102 INFO L231 Difference]: Finished difference. Result has 444 places, 440 transitions, 935 flow [2024-10-31 22:05:13,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=935, PETRI_PLACES=444, PETRI_TRANSITIONS=440} [2024-10-31 22:05:13,104 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -150 predicate places. [2024-10-31 22:05:13,104 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 440 transitions, 935 flow [2024-10-31 22:05:13,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.5) internal successors, (2409), 6 states have internal predecessors, (2409), 0 states have call successors, (0), 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 22:05:13,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:13,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:13,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:05:13,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:13,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:13,108 INFO L85 PathProgramCache]: Analyzing trace with hash -649436743, now seen corresponding path program 1 times [2024-10-31 22:05:13,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:13,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13223768] [2024-10-31 22:05:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:13,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:13,163 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 22:05:13,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:13,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13223768] [2024-10-31 22:05:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13223768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:13,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:13,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:13,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331111871] [2024-10-31 22:05:13,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:13,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:13,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:13,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 626 [2024-10-31 22:05:13,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 440 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:13,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:13,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 626 [2024-10-31 22:05:13,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:14,546 INFO L124 PetriNetUnfolderBase]: 954/3317 cut-off events. [2024-10-31 22:05:14,546 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-10-31 22:05:14,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4790 conditions, 3317 events. 954/3317 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25660 event pairs, 569 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4726. Up to 1287 conditions per place. [2024-10-31 22:05:14,592 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 24 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2024-10-31 22:05:14,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 439 transitions, 985 flow [2024-10-31 22:05:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2024-10-31 22:05:14,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7310969116080938 [2024-10-31 22:05:14,629 INFO L175 Difference]: Start difference. First operand has 444 places, 440 transitions, 935 flow. Second operand 3 states and 1373 transitions. [2024-10-31 22:05:14,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 439 transitions, 985 flow [2024-10-31 22:05:14,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 439 transitions, 945 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:05:14,640 INFO L231 Difference]: Finished difference. Result has 440 places, 439 transitions, 897 flow [2024-10-31 22:05:14,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=897, PETRI_PLACES=440, PETRI_TRANSITIONS=439} [2024-10-31 22:05:14,644 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -154 predicate places. [2024-10-31 22:05:14,645 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 439 transitions, 897 flow [2024-10-31 22:05:14,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:14,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:14,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:14,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:05:14,651 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:14,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash 290133932, now seen corresponding path program 1 times [2024-10-31 22:05:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:14,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945520853] [2024-10-31 22:05:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:14,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:14,714 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 22:05:14,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:14,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945520853] [2024-10-31 22:05:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945520853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:14,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987863190] [2024-10-31 22:05:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:14,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:14,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:14,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 439 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:14,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:14,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:14,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:15,629 INFO L124 PetriNetUnfolderBase]: 954/3316 cut-off events. [2024-10-31 22:05:15,629 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-10-31 22:05:15,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4772 conditions, 3316 events. 954/3316 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25622 event pairs, 569 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4705. Up to 1288 conditions per place. [2024-10-31 22:05:15,648 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 25 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2024-10-31 22:05:15,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 438 transitions, 949 flow [2024-10-31 22:05:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:15,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2024-10-31 22:05:15,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7300319488817891 [2024-10-31 22:05:15,652 INFO L175 Difference]: Start difference. First operand has 440 places, 439 transitions, 897 flow. Second operand 3 states and 1371 transitions. [2024-10-31 22:05:15,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 438 transitions, 949 flow [2024-10-31 22:05:15,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 438 transitions, 945 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:15,663 INFO L231 Difference]: Finished difference. Result has 439 places, 438 transitions, 895 flow [2024-10-31 22:05:15,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=891, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=895, PETRI_PLACES=439, PETRI_TRANSITIONS=438} [2024-10-31 22:05:15,666 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -155 predicate places. [2024-10-31 22:05:15,666 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 438 transitions, 895 flow [2024-10-31 22:05:15,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:15,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:15,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:15,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:05:15,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:15,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash -948293547, now seen corresponding path program 1 times [2024-10-31 22:05:15,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:15,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126913649] [2024-10-31 22:05:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:15,713 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 22:05:15,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:15,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126913649] [2024-10-31 22:05:15,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126913649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:15,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:15,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:15,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741847567] [2024-10-31 22:05:15,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:15,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:15,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:15,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:15,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:15,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 626 [2024-10-31 22:05:15,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 438 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:15,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:15,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 626 [2024-10-31 22:05:15,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:16,909 INFO L124 PetriNetUnfolderBase]: 1293/4020 cut-off events. [2024-10-31 22:05:16,909 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-10-31 22:05:16,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5951 conditions, 4020 events. 1293/4020 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 32189 event pairs, 462 based on Foata normal form. 0/3710 useless extension candidates. Maximal degree in co-relation 5885. Up to 939 conditions per place. [2024-10-31 22:05:16,935 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 39 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2024-10-31 22:05:16,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 454 transitions, 1017 flow [2024-10-31 22:05:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:16,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1396 transitions. [2024-10-31 22:05:16,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7433439829605963 [2024-10-31 22:05:16,940 INFO L175 Difference]: Start difference. First operand has 439 places, 438 transitions, 895 flow. Second operand 3 states and 1396 transitions. [2024-10-31 22:05:16,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 454 transitions, 1017 flow [2024-10-31 22:05:16,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 454 transitions, 1013 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:16,949 INFO L231 Difference]: Finished difference. Result has 439 places, 438 transitions, 899 flow [2024-10-31 22:05:16,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=439, PETRI_TRANSITIONS=438} [2024-10-31 22:05:16,950 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -155 predicate places. [2024-10-31 22:05:16,951 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 438 transitions, 899 flow [2024-10-31 22:05:16,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:16,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:16,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:16,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:05:16,953 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:16,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:16,953 INFO L85 PathProgramCache]: Analyzing trace with hash 697889354, now seen corresponding path program 1 times [2024-10-31 22:05:16,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:16,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131036807] [2024-10-31 22:05:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:16,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:16,998 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 22:05:16,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:16,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131036807] [2024-10-31 22:05:16,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131036807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:16,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:16,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:16,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153158827] [2024-10-31 22:05:16,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:16,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:16,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:17,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:17,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:17,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 626 [2024-10-31 22:05:17,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 438 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:17,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:17,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 626 [2024-10-31 22:05:17,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:18,388 INFO L124 PetriNetUnfolderBase]: 1293/3955 cut-off events. [2024-10-31 22:05:18,389 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-10-31 22:05:18,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6155 conditions, 3955 events. 1293/3955 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 31485 event pairs, 846 based on Foata normal form. 0/3622 useless extension candidates. Maximal degree in co-relation 6087. Up to 1740 conditions per place. [2024-10-31 22:05:18,412 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 25 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2024-10-31 22:05:18,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 437 transitions, 951 flow [2024-10-31 22:05:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2024-10-31 22:05:18,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7310969116080938 [2024-10-31 22:05:18,416 INFO L175 Difference]: Start difference. First operand has 439 places, 438 transitions, 899 flow. Second operand 3 states and 1373 transitions. [2024-10-31 22:05:18,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 437 transitions, 951 flow [2024-10-31 22:05:18,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 437 transitions, 949 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:18,424 INFO L231 Difference]: Finished difference. Result has 439 places, 437 transitions, 899 flow [2024-10-31 22:05:18,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=439, PETRI_TRANSITIONS=437} [2024-10-31 22:05:18,425 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -155 predicate places. [2024-10-31 22:05:18,425 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 437 transitions, 899 flow [2024-10-31 22:05:18,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:18,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:18,427 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:18,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:05:18,427 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:18,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash 237268096, now seen corresponding path program 1 times [2024-10-31 22:05:18,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:18,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709480713] [2024-10-31 22:05:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:18,473 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 22:05:18,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:18,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709480713] [2024-10-31 22:05:18,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709480713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:18,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:18,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:18,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867524192] [2024-10-31 22:05:18,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:18,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:18,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:18,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:18,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:18,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 437 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:18,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:18,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:18,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:19,759 INFO L124 PetriNetUnfolderBase]: 1293/3954 cut-off events. [2024-10-31 22:05:19,759 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-10-31 22:05:19,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6068 conditions, 3954 events. 1293/3954 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 31577 event pairs, 846 based on Foata normal form. 0/3622 useless extension candidates. Maximal degree in co-relation 6000. Up to 1741 conditions per place. [2024-10-31 22:05:19,793 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 26 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-10-31 22:05:19,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 436 transitions, 953 flow [2024-10-31 22:05:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2024-10-31 22:05:19,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7300319488817891 [2024-10-31 22:05:19,798 INFO L175 Difference]: Start difference. First operand has 439 places, 437 transitions, 899 flow. Second operand 3 states and 1371 transitions. [2024-10-31 22:05:19,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 436 transitions, 953 flow [2024-10-31 22:05:19,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 436 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:19,806 INFO L231 Difference]: Finished difference. Result has 438 places, 436 transitions, 897 flow [2024-10-31 22:05:19,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=897, PETRI_PLACES=438, PETRI_TRANSITIONS=436} [2024-10-31 22:05:19,808 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -156 predicate places. [2024-10-31 22:05:19,808 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 436 transitions, 897 flow [2024-10-31 22:05:19,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:19,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:19,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:19,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:05:19,811 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1537348846, now seen corresponding path program 1 times [2024-10-31 22:05:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929430222] [2024-10-31 22:05:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:19,857 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 22:05:19,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:19,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929430222] [2024-10-31 22:05:19,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929430222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:19,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:19,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85326153] [2024-10-31 22:05:19,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:19,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:19,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:19,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:19,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 626 [2024-10-31 22:05:19,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 436 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:19,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:19,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 626 [2024-10-31 22:05:19,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:21,356 INFO L124 PetriNetUnfolderBase]: 1293/3953 cut-off events. [2024-10-31 22:05:21,357 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-10-31 22:05:21,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6064 conditions, 3953 events. 1293/3953 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 31535 event pairs, 846 based on Foata normal form. 0/3622 useless extension candidates. Maximal degree in co-relation 5997. Up to 1738 conditions per place. [2024-10-31 22:05:21,399 INFO L140 encePairwiseOnDemand]: 624/626 looper letters, 24 selfloop transitions, 1 changer transitions 0/435 dead transitions. [2024-10-31 22:05:21,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 435 transitions, 945 flow [2024-10-31 22:05:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2024-10-31 22:05:21,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7348242811501597 [2024-10-31 22:05:21,404 INFO L175 Difference]: Start difference. First operand has 438 places, 436 transitions, 897 flow. Second operand 3 states and 1380 transitions. [2024-10-31 22:05:21,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 435 transitions, 945 flow [2024-10-31 22:05:21,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 435 transitions, 941 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:21,412 INFO L231 Difference]: Finished difference. Result has 437 places, 435 transitions, 893 flow [2024-10-31 22:05:21,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=891, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=893, PETRI_PLACES=437, PETRI_TRANSITIONS=435} [2024-10-31 22:05:21,416 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -157 predicate places. [2024-10-31 22:05:21,416 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 435 transitions, 893 flow [2024-10-31 22:05:21,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 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 22:05:21,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:21,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:21,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:05:21,418 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:21,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1649415859, now seen corresponding path program 1 times [2024-10-31 22:05:21,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:21,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933519516] [2024-10-31 22:05:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:21,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:21,484 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 22:05:21,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:21,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933519516] [2024-10-31 22:05:21,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933519516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:21,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:21,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:21,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994084045] [2024-10-31 22:05:21,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:21,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:21,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:21,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:21,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:21,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 626 [2024-10-31 22:05:21,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 435 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:21,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:21,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 626 [2024-10-31 22:05:21,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:22,773 INFO L124 PetriNetUnfolderBase]: 1293/3952 cut-off events. [2024-10-31 22:05:22,773 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-10-31 22:05:22,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6064 conditions, 3952 events. 1293/3952 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 31483 event pairs, 846 based on Foata normal form. 0/3622 useless extension candidates. Maximal degree in co-relation 5996. Up to 1740 conditions per place. [2024-10-31 22:05:22,801 INFO L140 encePairwiseOnDemand]: 623/626 looper letters, 25 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2024-10-31 22:05:22,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 434 transitions, 945 flow [2024-10-31 22:05:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:05:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1373 transitions. [2024-10-31 22:05:22,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7310969116080938 [2024-10-31 22:05:22,806 INFO L175 Difference]: Start difference. First operand has 437 places, 435 transitions, 893 flow. Second operand 3 states and 1373 transitions. [2024-10-31 22:05:22,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 434 transitions, 945 flow [2024-10-31 22:05:22,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 434 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:22,815 INFO L231 Difference]: Finished difference. Result has 437 places, 434 transitions, 894 flow [2024-10-31 22:05:22,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=626, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=437, PETRI_TRANSITIONS=434} [2024-10-31 22:05:22,817 INFO L277 CegarLoopForPetriNet]: 594 programPoint places, -157 predicate places. [2024-10-31 22:05:22,817 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 434 transitions, 894 flow [2024-10-31 22:05:22,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 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 22:05:22,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:22,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:22,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:05:22,819 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 296 more)] === [2024-10-31 22:05:22,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1728306121, now seen corresponding path program 1 times [2024-10-31 22:05:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:22,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211016628] [2024-10-31 22:05:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:22,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:22,877 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 22:05:22,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211016628] [2024-10-31 22:05:22,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211016628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:22,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:22,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:05:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813787697] [2024-10-31 22:05:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:22,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:05:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:05:22,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:05:22,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 626 [2024-10-31 22:05:22,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 434 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 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 22:05:22,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:22,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 626 [2024-10-31 22:05:22,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand