./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX --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 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:19:38,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:19:38,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:19:38,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:19:38,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:19:38,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:19:38,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:19:38,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:19:38,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:19:38,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:19:38,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:19:38,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:19:38,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:19:38,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:19:38,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:19:38,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:19:38,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:19:38,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:19:38,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:19:38,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:19:38,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:19:38,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:19:38,602 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:19:38,602 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:19:38,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:19:38,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:19:38,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:19:38,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:19:38,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:19:38,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:19:38,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:19:38,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:19:38,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:19:38,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:19:38,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:19:38,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:19:38,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:19:38,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:19:38,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:19:38,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:19:38,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:19:38,612 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_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 [2024-11-08 18:19:38,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:19:38,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:19:38,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:19:38,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:19:38,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:19:38,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c Unable to find full path for "g++" [2024-11-08 18:19:40,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:19:41,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:19:41,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2024-11-08 18:19:41,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/data/14a26a9fe/766d6b47923b489cb98c87c0e07a5a94/FLAGc94f3a595 [2024-11-08 18:19:41,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/data/14a26a9fe/766d6b47923b489cb98c87c0e07a5a94 [2024-11-08 18:19:41,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:19:41,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:19:41,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:19:41,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:19:41,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:19:41,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3cd58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41, skipping insertion in model container [2024-11-08 18:19:41,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:19:41,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:19:41,549 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:19:41,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:19:41,636 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:19:41,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41 WrapperNode [2024-11-08 18:19:41,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:19:41,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:19:41,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:19:41,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:19:41,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,732 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 344 [2024-11-08 18:19:41,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:19:41,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:19:41,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:19:41,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:19:41,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:19:41,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:19:41,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:19:41,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:19:41,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (1/1) ... [2024-11-08 18:19:41,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:19:41,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:41,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:19:41,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:19:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:19:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:19:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:19:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:19:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:19:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:19:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:19:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:19:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 18:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 18:19:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:19:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:19:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:19:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:19:41,876 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:19:42,082 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:19:42,085 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:19:43,308 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:19:43,310 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:19:43,723 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:19:43,723 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 18:19:43,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:43 BoogieIcfgContainer [2024-11-08 18:19:43,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:19:43,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:19:43,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:19:43,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:19:43,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:19:41" (1/3) ... [2024-11-08 18:19:43,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b24cfe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:19:43, skipping insertion in model container [2024-11-08 18:19:43,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:41" (2/3) ... [2024-11-08 18:19:43,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b24cfe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:19:43, skipping insertion in model container [2024-11-08 18:19:43,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:43" (3/3) ... [2024-11-08 18:19:43,743 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2024-11-08 18:19:43,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:19:43,771 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-08 18:19:43,771 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:19:43,925 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:19:43,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 496 places, 513 transitions, 1047 flow [2024-11-08 18:19:44,249 INFO L124 PetriNetUnfolderBase]: 27/510 cut-off events. [2024-11-08 18:19:44,249 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 18:19:44,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 510 events. 27/510 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 628 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 431. Up to 2 conditions per place. [2024-11-08 18:19:44,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 496 places, 513 transitions, 1047 flow [2024-11-08 18:19:44,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 466 transitions, 950 flow [2024-11-08 18:19:44,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:19:44,290 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;@36f3d6c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:19:44,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-11-08 18:19:44,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:19:44,296 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-08 18:19:44,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:19:44,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:44,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:44,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:44,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash 268997084, now seen corresponding path program 1 times [2024-11-08 18:19:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735878267] [2024-11-08 18:19:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:44,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:44,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:44,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735878267] [2024-11-08 18:19:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735878267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:44,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:44,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018040923] [2024-11-08 18:19:44,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:44,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:44,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:44,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 513 [2024-11-08 18:19:44,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 466 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:44,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:44,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 513 [2024-11-08 18:19:44,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:45,283 INFO L124 PetriNetUnfolderBase]: 104/1220 cut-off events. [2024-11-08 18:19:45,284 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-08 18:19:45,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 1220 events. 104/1220 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6515 event pairs, 51 based on Foata normal form. 9/1018 useless extension candidates. Maximal degree in co-relation 955. Up to 135 conditions per place. [2024-11-08 18:19:45,304 INFO L140 encePairwiseOnDemand]: 484/513 looper letters, 19 selfloop transitions, 2 changer transitions 9/439 dead transitions. [2024-11-08 18:19:45,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 439 transitions, 938 flow [2024-11-08 18:19:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2024-11-08 18:19:45,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9278752436647173 [2024-11-08 18:19:45,332 INFO L175 Difference]: Start difference. First operand has 452 places, 466 transitions, 950 flow. Second operand 3 states and 1428 transitions. [2024-11-08 18:19:45,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 439 transitions, 938 flow [2024-11-08 18:19:45,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 439 transitions, 926 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-08 18:19:45,356 INFO L231 Difference]: Finished difference. Result has 433 places, 430 transitions, 870 flow [2024-11-08 18:19:45,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=431, 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=870, PETRI_PLACES=433, PETRI_TRANSITIONS=430} [2024-11-08 18:19:45,362 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -19 predicate places. [2024-11-08 18:19:45,365 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 430 transitions, 870 flow [2024-11-08 18:19:45,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:45,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:45,367 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] [2024-11-08 18:19:45,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:19:45,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:45,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash -716828542, now seen corresponding path program 1 times [2024-11-08 18:19:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995688228] [2024-11-08 18:19:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:45,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:45,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:45,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:45,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995688228] [2024-11-08 18:19:45,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995688228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:45,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817833033] [2024-11-08 18:19:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:45,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:45,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:45,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 513 [2024-11-08 18:19:45,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 430 transitions, 870 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) [2024-11-08 18:19:45,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:45,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 513 [2024-11-08 18:19:45,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:45,903 INFO L124 PetriNetUnfolderBase]: 226/1243 cut-off events. [2024-11-08 18:19:45,903 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-08 18:19:45,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1243 events. 226/1243 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6583 event pairs, 128 based on Foata normal form. 0/1061 useless extension candidates. Maximal degree in co-relation 1531. Up to 299 conditions per place. [2024-11-08 18:19:45,916 INFO L140 encePairwiseOnDemand]: 505/513 looper letters, 23 selfloop transitions, 1 changer transitions 0/423 dead transitions. [2024-11-08 18:19:45,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 423 transitions, 904 flow [2024-11-08 18:19:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2024-11-08 18:19:45,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2024-11-08 18:19:45,923 INFO L175 Difference]: Start difference. First operand has 433 places, 430 transitions, 870 flow. Second operand 3 states and 1387 transitions. [2024-11-08 18:19:45,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 423 transitions, 904 flow [2024-11-08 18:19:45,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 423 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:45,931 INFO L231 Difference]: Finished difference. Result has 417 places, 423 transitions, 854 flow [2024-11-08 18:19:45,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=417, PETRI_TRANSITIONS=423} [2024-11-08 18:19:45,934 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -35 predicate places. [2024-11-08 18:19:45,934 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 423 transitions, 854 flow [2024-11-08 18:19:45,936 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) [2024-11-08 18:19:45,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:45,936 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] [2024-11-08 18:19:45,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:19:45,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:45,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1161917173, now seen corresponding path program 1 times [2024-11-08 18:19:45,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:45,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795176835] [2024-11-08 18:19:45,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:45,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:46,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:46,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795176835] [2024-11-08 18:19:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795176835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:46,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321913665] [2024-11-08 18:19:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:46,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:46,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:46,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:46,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 513 [2024-11-08 18:19:46,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 423 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:46,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:46,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 513 [2024-11-08 18:19:46,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:46,346 INFO L124 PetriNetUnfolderBase]: 58/596 cut-off events. [2024-11-08 18:19:46,346 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:19:46,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 596 events. 58/596 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1833 event pairs, 34 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 655. Up to 77 conditions per place. [2024-11-08 18:19:46,353 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 16 selfloop transitions, 2 changer transitions 0/422 dead transitions. [2024-11-08 18:19:46,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 422 transitions, 888 flow [2024-11-08 18:19:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2024-11-08 18:19:46,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9148797920727745 [2024-11-08 18:19:46,358 INFO L175 Difference]: Start difference. First operand has 417 places, 423 transitions, 854 flow. Second operand 3 states and 1408 transitions. [2024-11-08 18:19:46,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 422 transitions, 888 flow [2024-11-08 18:19:46,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 422 transitions, 887 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:46,368 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 855 flow [2024-11-08 18:19:46,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=855, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2024-11-08 18:19:46,372 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -35 predicate places. [2024-11-08 18:19:46,373 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 855 flow [2024-11-08 18:19:46,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:46,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:46,374 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] [2024-11-08 18:19:46,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:19:46,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:46,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash -864424845, now seen corresponding path program 1 times [2024-11-08 18:19:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:46,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725074554] [2024-11-08 18:19:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:46,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:47,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725074554] [2024-11-08 18:19:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725074554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:47,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:47,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:19:47,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153016235] [2024-11-08 18:19:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:47,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:19:47,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:19:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:19:47,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 513 [2024-11-08 18:19:47,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 855 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) [2024-11-08 18:19:47,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:47,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 513 [2024-11-08 18:19:47,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:48,586 INFO L124 PetriNetUnfolderBase]: 237/1320 cut-off events. [2024-11-08 18:19:48,586 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 18:19:48,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 1320 events. 237/1320 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7634 event pairs, 188 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1766. Up to 406 conditions per place. [2024-11-08 18:19:48,597 INFO L140 encePairwiseOnDemand]: 495/513 looper letters, 65 selfloop transitions, 15 changer transitions 0/419 dead transitions. [2024-11-08 18:19:48,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 419 transitions, 1009 flow [2024-11-08 18:19:48,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:19:48,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:19:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2483 transitions. [2024-11-08 18:19:48,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8066926575698505 [2024-11-08 18:19:48,604 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 855 flow. Second operand 6 states and 2483 transitions. [2024-11-08 18:19:48,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 419 transitions, 1009 flow [2024-11-08 18:19:48,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 419 transitions, 1005 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:48,613 INFO L231 Difference]: Finished difference. Result has 417 places, 419 transitions, 875 flow [2024-11-08 18:19:48,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=417, PETRI_TRANSITIONS=419} [2024-11-08 18:19:48,616 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -35 predicate places. [2024-11-08 18:19:48,616 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 419 transitions, 875 flow [2024-11-08 18:19:48,618 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) [2024-11-08 18:19:48,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:48,619 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] [2024-11-08 18:19:48,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:19:48,620 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:48,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:48,622 INFO L85 PathProgramCache]: Analyzing trace with hash -511076461, now seen corresponding path program 1 times [2024-11-08 18:19:48,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:48,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282908854] [2024-11-08 18:19:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:48,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:48,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282908854] [2024-11-08 18:19:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282908854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:48,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:48,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:48,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269031204] [2024-11-08 18:19:48,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:48,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:48,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:48,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:48,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 513 [2024-11-08 18:19:48,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 419 transitions, 875 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:48,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:48,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 513 [2024-11-08 18:19:48,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:48,953 INFO L124 PetriNetUnfolderBase]: 58/592 cut-off events. [2024-11-08 18:19:48,954 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:19:48,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 592 events. 58/592 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1702 event pairs, 34 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 666. Up to 77 conditions per place. [2024-11-08 18:19:48,960 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 16 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2024-11-08 18:19:48,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 418 transitions, 909 flow [2024-11-08 18:19:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2024-11-08 18:19:48,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9148797920727745 [2024-11-08 18:19:48,965 INFO L175 Difference]: Start difference. First operand has 417 places, 419 transitions, 875 flow. Second operand 3 states and 1408 transitions. [2024-11-08 18:19:48,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 418 transitions, 909 flow [2024-11-08 18:19:48,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 418 transitions, 879 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:19:48,975 INFO L231 Difference]: Finished difference. Result has 413 places, 418 transitions, 847 flow [2024-11-08 18:19:48,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=413, PETRI_TRANSITIONS=418} [2024-11-08 18:19:48,979 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -39 predicate places. [2024-11-08 18:19:48,980 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 418 transitions, 847 flow [2024-11-08 18:19:48,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:48,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:48,982 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] [2024-11-08 18:19:48,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:19:48,982 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash 142510925, now seen corresponding path program 1 times [2024-11-08 18:19:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:48,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814901752] [2024-11-08 18:19:48,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:48,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:49,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:49,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814901752] [2024-11-08 18:19:49,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814901752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:49,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:49,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:49,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189003748] [2024-11-08 18:19:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:49,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:49,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:49,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 513 [2024-11-08 18:19:49,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 418 transitions, 847 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:49,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 513 [2024-11-08 18:19:49,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:49,281 INFO L124 PetriNetUnfolderBase]: 26/455 cut-off events. [2024-11-08 18:19:49,281 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:19:49,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 455 events. 26/455 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 782 event pairs, 12 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 468. Up to 35 conditions per place. [2024-11-08 18:19:49,285 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 12 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2024-11-08 18:19:49,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 417 transitions, 873 flow [2024-11-08 18:19:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1416 transitions. [2024-11-08 18:19:49,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9200779727095516 [2024-11-08 18:19:49,290 INFO L175 Difference]: Start difference. First operand has 413 places, 418 transitions, 847 flow. Second operand 3 states and 1416 transitions. [2024-11-08 18:19:49,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 417 transitions, 873 flow [2024-11-08 18:19:49,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 417 transitions, 869 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:49,298 INFO L231 Difference]: Finished difference. Result has 412 places, 417 transitions, 845 flow [2024-11-08 18:19:49,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=412, PETRI_TRANSITIONS=417} [2024-11-08 18:19:49,302 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -40 predicate places. [2024-11-08 18:19:49,302 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 417 transitions, 845 flow [2024-11-08 18:19:49,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:49,305 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] [2024-11-08 18:19:49,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:19:49,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:49,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:49,306 INFO L85 PathProgramCache]: Analyzing trace with hash 337654922, now seen corresponding path program 1 times [2024-11-08 18:19:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:49,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707440368] [2024-11-08 18:19:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:49,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:49,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:49,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707440368] [2024-11-08 18:19:49,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707440368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:49,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:49,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:49,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402940851] [2024-11-08 18:19:49,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:49,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:49,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:49,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:49,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:49,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 513 [2024-11-08 18:19:49,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 417 transitions, 845 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:49,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 513 [2024-11-08 18:19:49,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:49,527 INFO L124 PetriNetUnfolderBase]: 26/454 cut-off events. [2024-11-08 18:19:49,528 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:19:49,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 454 events. 26/454 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 784 event pairs, 12 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 467. Up to 35 conditions per place. [2024-11-08 18:19:49,532 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 12 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2024-11-08 18:19:49,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 416 transitions, 871 flow [2024-11-08 18:19:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:49,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1416 transitions. [2024-11-08 18:19:49,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9200779727095516 [2024-11-08 18:19:49,536 INFO L175 Difference]: Start difference. First operand has 412 places, 417 transitions, 845 flow. Second operand 3 states and 1416 transitions. [2024-11-08 18:19:49,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 416 transitions, 871 flow [2024-11-08 18:19:49,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 416 transitions, 867 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:49,544 INFO L231 Difference]: Finished difference. Result has 411 places, 416 transitions, 843 flow [2024-11-08 18:19:49,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=411, PETRI_TRANSITIONS=416} [2024-11-08 18:19:49,545 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -41 predicate places. [2024-11-08 18:19:49,546 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 416 transitions, 843 flow [2024-11-08 18:19:49,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:49,547 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] [2024-11-08 18:19:49,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:19:49,548 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:49,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash 265381658, now seen corresponding path program 1 times [2024-11-08 18:19:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:49,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344378684] [2024-11-08 18:19:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:49,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:49,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:49,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344378684] [2024-11-08 18:19:49,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344378684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:49,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:49,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235217704] [2024-11-08 18:19:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:49,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:49,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:49,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:49,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 513 [2024-11-08 18:19:49,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 416 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:49,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 513 [2024-11-08 18:19:49,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:49,862 INFO L124 PetriNetUnfolderBase]: 112/1170 cut-off events. [2024-11-08 18:19:49,862 INFO L125 PetriNetUnfolderBase]: For 15/16 co-relation queries the response was YES. [2024-11-08 18:19:49,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1170 events. 112/1170 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5636 event pairs, 56 based on Foata normal form. 0/1016 useless extension candidates. Maximal degree in co-relation 1296. Up to 135 conditions per place. [2024-11-08 18:19:49,871 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 17 selfloop transitions, 1 changer transitions 0/412 dead transitions. [2024-11-08 18:19:49,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 871 flow [2024-11-08 18:19:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2024-11-08 18:19:49,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9129304743339831 [2024-11-08 18:19:49,875 INFO L175 Difference]: Start difference. First operand has 411 places, 416 transitions, 843 flow. Second operand 3 states and 1405 transitions. [2024-11-08 18:19:49,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 871 flow [2024-11-08 18:19:49,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 412 transitions, 867 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:49,883 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 833 flow [2024-11-08 18:19:49,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2024-11-08 18:19:49,887 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -45 predicate places. [2024-11-08 18:19:49,887 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 833 flow [2024-11-08 18:19:49,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:49,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:49,889 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] [2024-11-08 18:19:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:19:49,890 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:49,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1601340081, now seen corresponding path program 1 times [2024-11-08 18:19:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:49,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745509734] [2024-11-08 18:19:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:50,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:50,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745509734] [2024-11-08 18:19:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745509734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:19:50,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702347763] [2024-11-08 18:19:50,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:50,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:19:50,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:50,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:19:50,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:19:51,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 513 [2024-11-08 18:19:51,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 833 flow. Second operand has 6 states, 6 states have (on average 449.1666666666667) internal successors, (2695), 6 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:51,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:51,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 513 [2024-11-08 18:19:51,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:51,635 INFO L124 PetriNetUnfolderBase]: 32/520 cut-off events. [2024-11-08 18:19:51,636 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-08 18:19:51,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 520 events. 32/520 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1145 event pairs, 4 based on Foata normal form. 0/480 useless extension candidates. Maximal degree in co-relation 564. Up to 43 conditions per place. [2024-11-08 18:19:51,641 INFO L140 encePairwiseOnDemand]: 506/513 looper letters, 35 selfloop transitions, 5 changer transitions 0/417 dead transitions. [2024-11-08 18:19:51,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 417 transitions, 927 flow [2024-11-08 18:19:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:19:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:19:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2730 transitions. [2024-11-08 18:19:51,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869395711500975 [2024-11-08 18:19:51,648 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 833 flow. Second operand 6 states and 2730 transitions. [2024-11-08 18:19:51,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 417 transitions, 927 flow [2024-11-08 18:19:51,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 417 transitions, 926 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:51,658 INFO L231 Difference]: Finished difference. Result has 410 places, 411 transitions, 844 flow [2024-11-08 18:19:51,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=844, PETRI_PLACES=410, PETRI_TRANSITIONS=411} [2024-11-08 18:19:51,660 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -42 predicate places. [2024-11-08 18:19:51,660 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 411 transitions, 844 flow [2024-11-08 18:19:51,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.1666666666667) internal successors, (2695), 6 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:51,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:51,663 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] [2024-11-08 18:19:51,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:19:51,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:51,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:51,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2047700426, now seen corresponding path program 1 times [2024-11-08 18:19:51,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:51,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419218875] [2024-11-08 18:19:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:51,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:51,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:51,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419218875] [2024-11-08 18:19:51,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419218875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:51,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:51,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:51,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554034596] [2024-11-08 18:19:51,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:51,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:51,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:51,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 513 [2024-11-08 18:19:51,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 411 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:51,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:51,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 513 [2024-11-08 18:19:51,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:52,058 INFO L124 PetriNetUnfolderBase]: 92/937 cut-off events. [2024-11-08 18:19:52,058 INFO L125 PetriNetUnfolderBase]: For 42/43 co-relation queries the response was YES. [2024-11-08 18:19:52,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 937 events. 92/937 cut-off events. For 42/43 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4266 event pairs, 36 based on Foata normal form. 0/823 useless extension candidates. Maximal degree in co-relation 1081. Up to 112 conditions per place. [2024-11-08 18:19:52,068 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 16 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2024-11-08 18:19:52,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 410 transitions, 878 flow [2024-11-08 18:19:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1410 transitions. [2024-11-08 18:19:52,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9161793372319688 [2024-11-08 18:19:52,073 INFO L175 Difference]: Start difference. First operand has 410 places, 411 transitions, 844 flow. Second operand 3 states and 1410 transitions. [2024-11-08 18:19:52,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 410 transitions, 878 flow [2024-11-08 18:19:52,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 410 transitions, 870 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:19:52,083 INFO L231 Difference]: Finished difference. Result has 407 places, 410 transitions, 838 flow [2024-11-08 18:19:52,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=407, PETRI_TRANSITIONS=410} [2024-11-08 18:19:52,084 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -45 predicate places. [2024-11-08 18:19:52,085 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 410 transitions, 838 flow [2024-11-08 18:19:52,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:52,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:52,086 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, 1, 1] [2024-11-08 18:19:52,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:19:52,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:52,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1193592783, now seen corresponding path program 1 times [2024-11-08 18:19:52,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:52,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675434083] [2024-11-08 18:19:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:52,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:52,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675434083] [2024-11-08 18:19:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675434083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:52,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:52,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:52,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022014684] [2024-11-08 18:19:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:52,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:52,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:52,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 513 [2024-11-08 18:19:52,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 410 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:52,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:52,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 513 [2024-11-08 18:19:52,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:52,441 INFO L124 PetriNetUnfolderBase]: 128/1193 cut-off events. [2024-11-08 18:19:52,441 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-08 18:19:52,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1193 events. 128/1193 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5854 event pairs, 58 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 1390. Up to 158 conditions per place. [2024-11-08 18:19:52,452 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 18 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2024-11-08 18:19:52,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 406 transitions, 868 flow [2024-11-08 18:19:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2024-11-08 18:19:52,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9129304743339831 [2024-11-08 18:19:52,456 INFO L175 Difference]: Start difference. First operand has 407 places, 410 transitions, 838 flow. Second operand 3 states and 1405 transitions. [2024-11-08 18:19:52,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 406 transitions, 868 flow [2024-11-08 18:19:52,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 406 transitions, 864 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:52,464 INFO L231 Difference]: Finished difference. Result has 403 places, 406 transitions, 828 flow [2024-11-08 18:19:52,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=403, PETRI_TRANSITIONS=406} [2024-11-08 18:19:52,465 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -49 predicate places. [2024-11-08 18:19:52,466 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 406 transitions, 828 flow [2024-11-08 18:19:52,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:52,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:52,467 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:52,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:19:52,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:52,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1491972829, now seen corresponding path program 1 times [2024-11-08 18:19:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:52,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702629046] [2024-11-08 18:19:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:53,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702629046] [2024-11-08 18:19:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702629046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:19:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431507401] [2024-11-08 18:19:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:53,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:19:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:53,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:19:53,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:19:53,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 513 [2024-11-08 18:19:53,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 406 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 449.1666666666667) internal successors, (2695), 6 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:53,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:53,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 513 [2024-11-08 18:19:53,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:54,074 INFO L124 PetriNetUnfolderBase]: 32/513 cut-off events. [2024-11-08 18:19:54,074 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-08 18:19:54,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 513 events. 32/513 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1125 event pairs, 4 based on Foata normal form. 0/480 useless extension candidates. Maximal degree in co-relation 573. Up to 43 conditions per place. [2024-11-08 18:19:54,080 INFO L140 encePairwiseOnDemand]: 506/513 looper letters, 35 selfloop transitions, 5 changer transitions 0/410 dead transitions. [2024-11-08 18:19:54,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 410 transitions, 920 flow [2024-11-08 18:19:54,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:19:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:19:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2730 transitions. [2024-11-08 18:19:54,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869395711500975 [2024-11-08 18:19:54,112 INFO L175 Difference]: Start difference. First operand has 403 places, 406 transitions, 828 flow. Second operand 6 states and 2730 transitions. [2024-11-08 18:19:54,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 410 transitions, 920 flow [2024-11-08 18:19:54,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 919 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:54,122 INFO L231 Difference]: Finished difference. Result has 405 places, 404 transitions, 833 flow [2024-11-08 18:19:54,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=833, PETRI_PLACES=405, PETRI_TRANSITIONS=404} [2024-11-08 18:19:54,124 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -47 predicate places. [2024-11-08 18:19:54,125 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 404 transitions, 833 flow [2024-11-08 18:19:54,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.1666666666667) internal successors, (2695), 6 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:54,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:54,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:19:54,127 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:54,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash -183876330, now seen corresponding path program 1 times [2024-11-08 18:19:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:54,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744521137] [2024-11-08 18:19:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:54,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744521137] [2024-11-08 18:19:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744521137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:54,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:54,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66059649] [2024-11-08 18:19:54,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:54,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:54,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:54,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:54,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 513 [2024-11-08 18:19:54,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 404 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:54,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 513 [2024-11-08 18:19:54,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:54,512 INFO L124 PetriNetUnfolderBase]: 66/678 cut-off events. [2024-11-08 18:19:54,513 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-08 18:19:54,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 678 events. 66/678 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2208 event pairs, 36 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 810. Up to 98 conditions per place. [2024-11-08 18:19:54,519 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 16 selfloop transitions, 2 changer transitions 0/403 dead transitions. [2024-11-08 18:19:54,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 403 transitions, 867 flow [2024-11-08 18:19:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:54,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1410 transitions. [2024-11-08 18:19:54,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9161793372319688 [2024-11-08 18:19:54,524 INFO L175 Difference]: Start difference. First operand has 405 places, 404 transitions, 833 flow. Second operand 3 states and 1410 transitions. [2024-11-08 18:19:54,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 403 transitions, 867 flow [2024-11-08 18:19:54,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 403 transitions, 857 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:19:54,532 INFO L231 Difference]: Finished difference. Result has 401 places, 403 transitions, 825 flow [2024-11-08 18:19:54,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=401, PETRI_TRANSITIONS=403} [2024-11-08 18:19:54,533 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -51 predicate places. [2024-11-08 18:19:54,534 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 403 transitions, 825 flow [2024-11-08 18:19:54,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:54,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:19:54,535 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:54,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 316345157, now seen corresponding path program 1 times [2024-11-08 18:19:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713578131] [2024-11-08 18:19:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:54,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:54,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713578131] [2024-11-08 18:19:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713578131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:54,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:54,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:54,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416398559] [2024-11-08 18:19:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:54,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:54,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:54,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:54,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 513 [2024-11-08 18:19:54,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 403 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:54,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 513 [2024-11-08 18:19:54,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:54,773 INFO L124 PetriNetUnfolderBase]: 32/491 cut-off events. [2024-11-08 18:19:54,773 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 18:19:54,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 491 events. 32/491 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1016 event pairs, 14 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 536. Up to 50 conditions per place. [2024-11-08 18:19:54,777 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 14 selfloop transitions, 2 changer transitions 0/402 dead transitions. [2024-11-08 18:19:54,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 402 transitions, 855 flow [2024-11-08 18:19:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1414 transitions. [2024-11-08 18:19:54,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9187784275503573 [2024-11-08 18:19:54,781 INFO L175 Difference]: Start difference. First operand has 401 places, 403 transitions, 825 flow. Second operand 3 states and 1414 transitions. [2024-11-08 18:19:54,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 402 transitions, 855 flow [2024-11-08 18:19:54,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 402 transitions, 851 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:54,788 INFO L231 Difference]: Finished difference. Result has 400 places, 402 transitions, 823 flow [2024-11-08 18:19:54,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=400, PETRI_TRANSITIONS=402} [2024-11-08 18:19:54,789 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -52 predicate places. [2024-11-08 18:19:54,790 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 402 transitions, 823 flow [2024-11-08 18:19:54,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:54,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:54,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:19:54,791 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:54,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1734699961, now seen corresponding path program 1 times [2024-11-08 18:19:54,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:54,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938455843] [2024-11-08 18:19:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:54,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:54,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938455843] [2024-11-08 18:19:54,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938455843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:54,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:54,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:54,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55316257] [2024-11-08 18:19:54,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:54,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:54,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:54,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:54,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 513 [2024-11-08 18:19:54,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 402 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:54,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:54,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 513 [2024-11-08 18:19:54,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:55,323 INFO L124 PetriNetUnfolderBase]: 129/1446 cut-off events. [2024-11-08 18:19:55,324 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-08 18:19:55,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1446 events. 129/1446 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8718 event pairs, 25 based on Foata normal form. 0/1296 useless extension candidates. Maximal degree in co-relation 1654. Up to 99 conditions per place. [2024-11-08 18:19:55,335 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 24 selfloop transitions, 3 changer transitions 0/411 dead transitions. [2024-11-08 18:19:55,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 411 transitions, 904 flow [2024-11-08 18:19:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:55,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1425 transitions. [2024-11-08 18:19:55,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-11-08 18:19:55,339 INFO L175 Difference]: Start difference. First operand has 400 places, 402 transitions, 823 flow. Second operand 3 states and 1425 transitions. [2024-11-08 18:19:55,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 411 transitions, 904 flow [2024-11-08 18:19:55,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 411 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:19:55,348 INFO L231 Difference]: Finished difference. Result has 399 places, 402 transitions, 832 flow [2024-11-08 18:19:55,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=399, PETRI_TRANSITIONS=402} [2024-11-08 18:19:55,349 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -53 predicate places. [2024-11-08 18:19:55,349 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 402 transitions, 832 flow [2024-11-08 18:19:55,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:55,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:55,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:55,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:19:55,351 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:55,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1446117907, now seen corresponding path program 1 times [2024-11-08 18:19:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:55,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135882299] [2024-11-08 18:19:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:55,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:55,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135882299] [2024-11-08 18:19:55,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135882299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:55,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:55,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:19:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930569913] [2024-11-08 18:19:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:55,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:19:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:19:55,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:19:56,330 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 513 [2024-11-08 18:19:56,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 402 transitions, 832 flow. Second operand has 7 states, 7 states have (on average 442.14285714285717) internal successors, (3095), 7 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:56,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:56,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 513 [2024-11-08 18:19:56,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:57,260 INFO L124 PetriNetUnfolderBase]: 240/2101 cut-off events. [2024-11-08 18:19:57,260 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-08 18:19:57,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 2101 events. 240/2101 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11404 event pairs, 127 based on Foata normal form. 9/1956 useless extension candidates. Maximal degree in co-relation 2656. Up to 245 conditions per place. [2024-11-08 18:19:57,311 INFO L140 encePairwiseOnDemand]: 481/513 looper letters, 59 selfloop transitions, 45 changer transitions 0/460 dead transitions. [2024-11-08 18:19:57,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 460 transitions, 1172 flow [2024-11-08 18:19:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:19:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 18:19:57,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4482 transitions. [2024-11-08 18:19:57,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736842105263158 [2024-11-08 18:19:57,326 INFO L175 Difference]: Start difference. First operand has 399 places, 402 transitions, 832 flow. Second operand 10 states and 4482 transitions. [2024-11-08 18:19:57,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 460 transitions, 1172 flow [2024-11-08 18:19:57,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 460 transitions, 1169 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:57,337 INFO L231 Difference]: Finished difference. Result has 411 places, 430 transitions, 1045 flow [2024-11-08 18:19:57,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1045, PETRI_PLACES=411, PETRI_TRANSITIONS=430} [2024-11-08 18:19:57,338 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -41 predicate places. [2024-11-08 18:19:57,339 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 430 transitions, 1045 flow [2024-11-08 18:19:57,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 442.14285714285717) internal successors, (3095), 7 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:57,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:57,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:57,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:19:57,341 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash 220841721, now seen corresponding path program 1 times [2024-11-08 18:19:57,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442089776] [2024-11-08 18:19:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442089776] [2024-11-08 18:19:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442089776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:57,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405335226] [2024-11-08 18:19:57,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:57,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:57,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:57,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:57,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 513 [2024-11-08 18:19:57,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 430 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:57,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:57,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 513 [2024-11-08 18:19:57,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:57,778 INFO L124 PetriNetUnfolderBase]: 94/1046 cut-off events. [2024-11-08 18:19:57,779 INFO L125 PetriNetUnfolderBase]: For 75/78 co-relation queries the response was YES. [2024-11-08 18:19:57,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 1046 events. 94/1046 cut-off events. For 75/78 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3172 event pairs, 39 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 1305. Up to 125 conditions per place. [2024-11-08 18:19:57,787 INFO L140 encePairwiseOnDemand]: 511/513 looper letters, 12 selfloop transitions, 1 changer transitions 0/429 dead transitions. [2024-11-08 18:19:57,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 429 transitions, 1069 flow [2024-11-08 18:19:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1423 transitions. [2024-11-08 18:19:57,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9246263807667316 [2024-11-08 18:19:57,791 INFO L175 Difference]: Start difference. First operand has 411 places, 430 transitions, 1045 flow. Second operand 3 states and 1423 transitions. [2024-11-08 18:19:57,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 429 transitions, 1069 flow [2024-11-08 18:19:57,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 429 transitions, 1069 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:19:57,804 INFO L231 Difference]: Finished difference. Result has 412 places, 429 transitions, 1045 flow [2024-11-08 18:19:57,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1045, PETRI_PLACES=412, PETRI_TRANSITIONS=429} [2024-11-08 18:19:57,806 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -40 predicate places. [2024-11-08 18:19:57,806 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 429 transitions, 1045 flow [2024-11-08 18:19:57,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:57,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:57,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:57,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:19:57,807 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:57,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1668152019, now seen corresponding path program 1 times [2024-11-08 18:19:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265077389] [2024-11-08 18:19:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:19:57,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265077389] [2024-11-08 18:19:57,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265077389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:57,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:57,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:19:57,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746679008] [2024-11-08 18:19:57,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:57,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:19:57,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:57,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:19:57,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:19:57,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 513 [2024-11-08 18:19:57,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 429 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 469.0) internal successors, (1407), 3 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:57,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:19:57,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 513 [2024-11-08 18:19:57,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:19:58,620 INFO L124 PetriNetUnfolderBase]: 245/2260 cut-off events. [2024-11-08 18:19:58,620 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-11-08 18:19:58,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2260 events. 245/2260 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13861 event pairs, 61 based on Foata normal form. 4/2118 useless extension candidates. Maximal degree in co-relation 2886. Up to 176 conditions per place. [2024-11-08 18:19:58,642 INFO L140 encePairwiseOnDemand]: 508/513 looper letters, 20 selfloop transitions, 2 changer transitions 34/438 dead transitions. [2024-11-08 18:19:58,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 438 transitions, 1124 flow [2024-11-08 18:19:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:19:58,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:19:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1424 transitions. [2024-11-08 18:19:58,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252761533463287 [2024-11-08 18:19:58,646 INFO L175 Difference]: Start difference. First operand has 412 places, 429 transitions, 1045 flow. Second operand 3 states and 1424 transitions. [2024-11-08 18:19:58,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 438 transitions, 1124 flow [2024-11-08 18:19:58,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 438 transitions, 1123 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:19:58,656 INFO L231 Difference]: Finished difference. Result has 412 places, 396 transitions, 902 flow [2024-11-08 18:19:58,657 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=412, PETRI_TRANSITIONS=396} [2024-11-08 18:19:58,657 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -40 predicate places. [2024-11-08 18:19:58,657 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 396 transitions, 902 flow [2024-11-08 18:19:58,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.0) internal successors, (1407), 3 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:19:58,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:19:58,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:58,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:19:58,659 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:19:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1060161434, now seen corresponding path program 1 times [2024-11-08 18:19:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141135534] [2024-11-08 18:19:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:19:59,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:59,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141135534] [2024-11-08 18:19:59,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141135534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:19:59,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809756545] [2024-11-08 18:19:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:59,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:19:59,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:59,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:19:59,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:19:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:59,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:19:59,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:20:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:20:00,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:20:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:20:00,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809756545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:20:00,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:20:00,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-11-08 18:20:00,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685894845] [2024-11-08 18:20:00,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:20:00,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:20:00,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:00,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:20:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:20:03,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 513 [2024-11-08 18:20:03,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 396 transitions, 902 flow. Second operand has 19 states, 19 states have (on average 428.42105263157896) internal successors, (8140), 19 states have internal predecessors, (8140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:03,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:03,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 513 [2024-11-08 18:20:03,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:04,946 INFO L124 PetriNetUnfolderBase]: 437/2941 cut-off events. [2024-11-08 18:20:04,946 INFO L125 PetriNetUnfolderBase]: For 364/364 co-relation queries the response was YES. [2024-11-08 18:20:04,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4281 conditions, 2941 events. 437/2941 cut-off events. For 364/364 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 18184 event pairs, 215 based on Foata normal form. 9/2753 useless extension candidates. Maximal degree in co-relation 4237. Up to 437 conditions per place. [2024-11-08 18:20:04,970 INFO L140 encePairwiseOnDemand]: 471/513 looper letters, 51 selfloop transitions, 37 changer transitions 85/508 dead transitions. [2024-11-08 18:20:04,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 508 transitions, 1599 flow [2024-11-08 18:20:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:20:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-08 18:20:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 8245 transitions. [2024-11-08 18:20:04,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8459013029650149 [2024-11-08 18:20:04,986 INFO L175 Difference]: Start difference. First operand has 412 places, 396 transitions, 902 flow. Second operand 19 states and 8245 transitions. [2024-11-08 18:20:04,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 508 transitions, 1599 flow [2024-11-08 18:20:04,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 508 transitions, 1489 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-11-08 18:20:04,998 INFO L231 Difference]: Finished difference. Result has 422 places, 405 transitions, 1028 flow [2024-11-08 18:20:04,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1028, PETRI_PLACES=422, PETRI_TRANSITIONS=405} [2024-11-08 18:20:04,999 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -30 predicate places. [2024-11-08 18:20:04,999 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 405 transitions, 1028 flow [2024-11-08 18:20:05,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 428.42105263157896) internal successors, (8140), 19 states have internal predecessors, (8140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:05,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:05,002 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:05,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:20:05,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:05,204 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:05,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 981701855, now seen corresponding path program 2 times [2024-11-08 18:20:05,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:05,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743890238] [2024-11-08 18:20:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:05,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:20:06,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:06,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743890238] [2024-11-08 18:20:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743890238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:06,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:06,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:20:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829001315] [2024-11-08 18:20:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:06,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:20:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:20:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:20:07,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 445 out of 513 [2024-11-08 18:20:07,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 405 transitions, 1028 flow. Second operand has 6 states, 6 states have (on average 448.5) internal successors, (2691), 6 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:07,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:07,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 445 of 513 [2024-11-08 18:20:07,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:09,035 INFO L124 PetriNetUnfolderBase]: 757/3884 cut-off events. [2024-11-08 18:20:09,035 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-11-08 18:20:09,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5894 conditions, 3884 events. 757/3884 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 31558 event pairs, 218 based on Foata normal form. 0/3606 useless extension candidates. Maximal degree in co-relation 5843. Up to 807 conditions per place. [2024-11-08 18:20:09,064 INFO L140 encePairwiseOnDemand]: 499/513 looper letters, 56 selfloop transitions, 19 changer transitions 0/442 dead transitions. [2024-11-08 18:20:09,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 442 transitions, 1276 flow [2024-11-08 18:20:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:20:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:20:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2742 transitions. [2024-11-08 18:20:09,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8908382066276803 [2024-11-08 18:20:09,070 INFO L175 Difference]: Start difference. First operand has 422 places, 405 transitions, 1028 flow. Second operand 6 states and 2742 transitions. [2024-11-08 18:20:09,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 442 transitions, 1276 flow [2024-11-08 18:20:09,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 442 transitions, 1204 flow, removed 19 selfloop flow, removed 12 redundant places. [2024-11-08 18:20:09,079 INFO L231 Difference]: Finished difference. Result has 412 places, 423 transitions, 1112 flow [2024-11-08 18:20:09,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=412, PETRI_TRANSITIONS=423} [2024-11-08 18:20:09,081 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -40 predicate places. [2024-11-08 18:20:09,081 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 423 transitions, 1112 flow [2024-11-08 18:20:09,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 448.5) internal successors, (2691), 6 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:09,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:09,083 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:09,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:20:09,083 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:09,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash -984353273, now seen corresponding path program 1 times [2024-11-08 18:20:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:09,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558169695] [2024-11-08 18:20:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:20:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:12,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558169695] [2024-11-08 18:20:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558169695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:12,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:12,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:20:12,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764736959] [2024-11-08 18:20:12,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:12,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:20:12,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:12,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:20:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:20:18,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 513 [2024-11-08 18:20:18,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 423 transitions, 1112 flow. Second operand has 20 states, 20 states have (on average 419.6) internal successors, (8392), 20 states have internal predecessors, (8392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:18,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:18,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 513 [2024-11-08 18:20:18,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:22,675 INFO L124 PetriNetUnfolderBase]: 1983/9489 cut-off events. [2024-11-08 18:20:22,675 INFO L125 PetriNetUnfolderBase]: For 2581/2799 co-relation queries the response was YES. [2024-11-08 18:20:22,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15461 conditions, 9489 events. 1983/9489 cut-off events. For 2581/2799 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 101187 event pairs, 428 based on Foata normal form. 142/8815 useless extension candidates. Maximal degree in co-relation 15413. Up to 1219 conditions per place. [2024-11-08 18:20:22,775 INFO L140 encePairwiseOnDemand]: 477/513 looper letters, 80 selfloop transitions, 56 changer transitions 0/483 dead transitions. [2024-11-08 18:20:22,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 483 transitions, 1623 flow [2024-11-08 18:20:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 18:20:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-08 18:20:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 13876 transitions. [2024-11-08 18:20:22,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.819658574044539 [2024-11-08 18:20:22,799 INFO L175 Difference]: Start difference. First operand has 412 places, 423 transitions, 1112 flow. Second operand 33 states and 13876 transitions. [2024-11-08 18:20:22,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 483 transitions, 1623 flow [2024-11-08 18:20:22,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 483 transitions, 1623 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:20:22,816 INFO L231 Difference]: Finished difference. Result has 448 places, 453 transitions, 1428 flow [2024-11-08 18:20:22,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1428, PETRI_PLACES=448, PETRI_TRANSITIONS=453} [2024-11-08 18:20:22,817 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -4 predicate places. [2024-11-08 18:20:22,817 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 453 transitions, 1428 flow [2024-11-08 18:20:22,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 419.6) internal successors, (8392), 20 states have internal predecessors, (8392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:22,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:22,820 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:22,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:20:22,821 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:22,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash 899970867, now seen corresponding path program 2 times [2024-11-08 18:20:22,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:22,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644169345] [2024-11-08 18:20:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:22,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:20:25,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:25,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644169345] [2024-11-08 18:20:25,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644169345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:25,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:25,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:20:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680435917] [2024-11-08 18:20:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:25,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:20:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:20:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:20:32,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 513 [2024-11-08 18:20:32,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 453 transitions, 1428 flow. Second operand has 20 states, 20 states have (on average 419.6) internal successors, (8392), 20 states have internal predecessors, (8392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:32,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:32,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 513 [2024-11-08 18:20:32,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:36,917 INFO L124 PetriNetUnfolderBase]: 2796/12668 cut-off events. [2024-11-08 18:20:36,917 INFO L125 PetriNetUnfolderBase]: For 10583/11990 co-relation queries the response was YES. [2024-11-08 18:20:36,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23295 conditions, 12668 events. 2796/12668 cut-off events. For 10583/11990 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 139836 event pairs, 644 based on Foata normal form. 204/11512 useless extension candidates. Maximal degree in co-relation 23241. Up to 2545 conditions per place. [2024-11-08 18:20:37,043 INFO L140 encePairwiseOnDemand]: 478/513 looper letters, 111 selfloop transitions, 59 changer transitions 4/519 dead transitions. [2024-11-08 18:20:37,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 519 transitions, 2158 flow [2024-11-08 18:20:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 18:20:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-08 18:20:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 13449 transitions. [2024-11-08 18:20:37,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8192616959064327 [2024-11-08 18:20:37,057 INFO L175 Difference]: Start difference. First operand has 448 places, 453 transitions, 1428 flow. Second operand 32 states and 13449 transitions. [2024-11-08 18:20:37,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 519 transitions, 2158 flow [2024-11-08 18:20:37,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 519 transitions, 2107 flow, removed 0 selfloop flow, removed 26 redundant places. [2024-11-08 18:20:37,084 INFO L231 Difference]: Finished difference. Result has 457 places, 471 transitions, 1736 flow [2024-11-08 18:20:37,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1377, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1736, PETRI_PLACES=457, PETRI_TRANSITIONS=471} [2024-11-08 18:20:37,085 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, 5 predicate places. [2024-11-08 18:20:37,085 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 471 transitions, 1736 flow [2024-11-08 18:20:37,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 419.6) internal successors, (8392), 20 states have internal predecessors, (8392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:37,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:37,089 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:37,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:20:37,089 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:37,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash -669731664, now seen corresponding path program 1 times [2024-11-08 18:20:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:37,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979165143] [2024-11-08 18:20:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:20:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:38,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979165143] [2024-11-08 18:20:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979165143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:38,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:38,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:20:38,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155235649] [2024-11-08 18:20:38,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:38,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:20:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:20:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:20:39,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 445 out of 513 [2024-11-08 18:20:39,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 471 transitions, 1736 flow. Second operand has 6 states, 6 states have (on average 448.5) internal successors, (2691), 6 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:39,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:39,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 445 of 513 [2024-11-08 18:20:39,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:45,206 INFO L124 PetriNetUnfolderBase]: 4518/17646 cut-off events. [2024-11-08 18:20:45,207 INFO L125 PetriNetUnfolderBase]: For 21035/21523 co-relation queries the response was YES. [2024-11-08 18:20:45,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37221 conditions, 17646 events. 4518/17646 cut-off events. For 21035/21523 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 203548 event pairs, 813 based on Foata normal form. 276/16731 useless extension candidates. Maximal degree in co-relation 37166. Up to 3091 conditions per place. [2024-11-08 18:20:45,414 INFO L140 encePairwiseOnDemand]: 499/513 looper letters, 85 selfloop transitions, 32 changer transitions 0/516 dead transitions. [2024-11-08 18:20:45,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 516 transitions, 2189 flow [2024-11-08 18:20:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:20:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:20:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2740 transitions. [2024-11-08 18:20:45,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8901884340480831 [2024-11-08 18:20:45,418 INFO L175 Difference]: Start difference. First operand has 457 places, 471 transitions, 1736 flow. Second operand 6 states and 2740 transitions. [2024-11-08 18:20:45,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 516 transitions, 2189 flow [2024-11-08 18:20:45,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 516 transitions, 2124 flow, removed 7 selfloop flow, removed 26 redundant places. [2024-11-08 18:20:45,476 INFO L231 Difference]: Finished difference. Result has 437 places, 497 transitions, 2010 flow [2024-11-08 18:20:45,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1671, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2010, PETRI_PLACES=437, PETRI_TRANSITIONS=497} [2024-11-08 18:20:45,477 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -15 predicate places. [2024-11-08 18:20:45,478 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 497 transitions, 2010 flow [2024-11-08 18:20:45,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 448.5) internal successors, (2691), 6 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:45,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:45,479 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:45,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:20:45,480 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:45,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1753350289, now seen corresponding path program 1 times [2024-11-08 18:20:45,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:45,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240206112] [2024-11-08 18:20:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:20:45,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240206112] [2024-11-08 18:20:45,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240206112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:45,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:45,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:20:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770725758] [2024-11-08 18:20:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:45,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:20:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:20:45,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:20:45,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 513 [2024-11-08 18:20:45,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 497 transitions, 2010 flow. Second operand has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:45,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:45,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 513 [2024-11-08 18:20:45,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:20:50,748 INFO L124 PetriNetUnfolderBase]: 3215/16133 cut-off events. [2024-11-08 18:20:50,748 INFO L125 PetriNetUnfolderBase]: For 28767/29186 co-relation queries the response was YES. [2024-11-08 18:20:50,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36399 conditions, 16133 events. 3215/16133 cut-off events. For 28767/29186 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 189430 event pairs, 917 based on Foata normal form. 195/15289 useless extension candidates. Maximal degree in co-relation 36341. Up to 2252 conditions per place. [2024-11-08 18:20:50,983 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 49 selfloop transitions, 2 changer transitions 0/503 dead transitions. [2024-11-08 18:20:50,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 503 transitions, 2152 flow [2024-11-08 18:20:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:20:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:20:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1416 transitions. [2024-11-08 18:20:50,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9200779727095516 [2024-11-08 18:20:50,986 INFO L175 Difference]: Start difference. First operand has 437 places, 497 transitions, 2010 flow. Second operand 3 states and 1416 transitions. [2024-11-08 18:20:50,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 503 transitions, 2152 flow [2024-11-08 18:20:51,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 503 transitions, 2136 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-11-08 18:20:51,124 INFO L231 Difference]: Finished difference. Result has 438 places, 496 transitions, 1996 flow [2024-11-08 18:20:51,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1996, PETRI_PLACES=438, PETRI_TRANSITIONS=496} [2024-11-08 18:20:51,125 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, -14 predicate places. [2024-11-08 18:20:51,126 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 496 transitions, 1996 flow [2024-11-08 18:20:51,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:51,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:20:51,127 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:51,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:20:51,128 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:20:51,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1416611235, now seen corresponding path program 1 times [2024-11-08 18:20:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:51,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984101977] [2024-11-08 18:20:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:51,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 18:20:52,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984101977] [2024-11-08 18:20:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984101977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:20:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201337620] [2024-11-08 18:20:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:52,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:52,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:20:52,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:20:52,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:20:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:52,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:20:52,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:20:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 18:20:53,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:20:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 18:20:54,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201337620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:20:54,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:20:54,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2024-11-08 18:20:54,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568504798] [2024-11-08 18:20:54,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:20:54,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 18:20:54,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 18:20:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:20:56,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 513 [2024-11-08 18:20:56,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 496 transitions, 1996 flow. Second operand has 30 states, 30 states have (on average 426.1666666666667) internal successors, (12785), 30 states have internal predecessors, (12785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:20:56,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:20:56,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 513 [2024-11-08 18:20:56,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:21:07,871 INFO L124 PetriNetUnfolderBase]: 7438/28753 cut-off events. [2024-11-08 18:21:07,871 INFO L125 PetriNetUnfolderBase]: For 41815/50344 co-relation queries the response was YES. [2024-11-08 18:21:08,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64089 conditions, 28753 events. 7438/28753 cut-off events. For 41815/50344 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 341832 event pairs, 2075 based on Foata normal form. 677/26589 useless extension candidates. Maximal degree in co-relation 64028. Up to 5635 conditions per place. [2024-11-08 18:21:08,322 INFO L140 encePairwiseOnDemand]: 471/513 looper letters, 153 selfloop transitions, 120 changer transitions 0/652 dead transitions. [2024-11-08 18:21:08,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 652 transitions, 3319 flow [2024-11-08 18:21:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 18:21:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-08 18:21:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 14576 transitions. [2024-11-08 18:21:08,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8356839811948171 [2024-11-08 18:21:08,342 INFO L175 Difference]: Start difference. First operand has 438 places, 496 transitions, 1996 flow. Second operand 34 states and 14576 transitions. [2024-11-08 18:21:08,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 652 transitions, 3319 flow [2024-11-08 18:21:08,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 652 transitions, 3315 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:21:08,450 INFO L231 Difference]: Finished difference. Result has 479 places, 578 transitions, 2787 flow [2024-11-08 18:21:08,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2787, PETRI_PLACES=479, PETRI_TRANSITIONS=578} [2024-11-08 18:21:08,451 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, 27 predicate places. [2024-11-08 18:21:08,451 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 578 transitions, 2787 flow [2024-11-08 18:21:08,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 426.1666666666667) internal successors, (12785), 30 states have internal predecessors, (12785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:21:08,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:21:08,454 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:21:08,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:21:08,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab952ff4-d89f-4e82-9c20-563c16e37f06/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 18:21:08,655 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:21:08,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1955928644, now seen corresponding path program 1 times [2024-11-08 18:21:08,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:08,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773358454] [2024-11-08 18:21:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:08,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:21:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:21:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:21:10,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:21:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773358454] [2024-11-08 18:21:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773358454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:21:10,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:21:10,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:21:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713225938] [2024-11-08 18:21:10,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:21:10,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:21:10,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:21:10,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:21:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:21:13,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 513 [2024-11-08 18:21:13,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 578 transitions, 2787 flow. Second operand has 15 states, 15 states have (on average 424.2) internal successors, (6363), 15 states have internal predecessors, (6363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:21:13,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:21:13,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 513 [2024-11-08 18:21:13,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:21:25,971 INFO L124 PetriNetUnfolderBase]: 7532/31070 cut-off events. [2024-11-08 18:21:25,971 INFO L125 PetriNetUnfolderBase]: For 67660/70862 co-relation queries the response was YES. [2024-11-08 18:21:26,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76397 conditions, 31070 events. 7532/31070 cut-off events. For 67660/70862 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 373152 event pairs, 1229 based on Foata normal form. 1379/30412 useless extension candidates. Maximal degree in co-relation 76322. Up to 4107 conditions per place. [2024-11-08 18:21:26,418 INFO L140 encePairwiseOnDemand]: 480/513 looper letters, 174 selfloop transitions, 81 changer transitions 0/681 dead transitions. [2024-11-08 18:21:26,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 681 transitions, 4106 flow [2024-11-08 18:21:26,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 18:21:26,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-08 18:21:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 10635 transitions. [2024-11-08 18:21:26,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8292397660818713 [2024-11-08 18:21:26,431 INFO L175 Difference]: Start difference. First operand has 479 places, 578 transitions, 2787 flow. Second operand 25 states and 10635 transitions. [2024-11-08 18:21:26,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 681 transitions, 4106 flow [2024-11-08 18:21:26,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 681 transitions, 4022 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-11-08 18:21:26,792 INFO L231 Difference]: Finished difference. Result has 503 places, 592 transitions, 3123 flow [2024-11-08 18:21:26,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=2699, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3123, PETRI_PLACES=503, PETRI_TRANSITIONS=592} [2024-11-08 18:21:26,793 INFO L277 CegarLoopForPetriNet]: 452 programPoint places, 51 predicate places. [2024-11-08 18:21:26,793 INFO L471 AbstractCegarLoop]: Abstraction has has 503 places, 592 transitions, 3123 flow [2024-11-08 18:21:26,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 424.2) internal successors, (6363), 15 states have internal predecessors, (6363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:21:26,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:21:26,797 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:21:26,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:21:26,797 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2024-11-08 18:21:26,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:21:26,797 INFO L85 PathProgramCache]: Analyzing trace with hash 984685296, now seen corresponding path program 2 times [2024-11-08 18:21:26,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:21:26,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117499301] [2024-11-08 18:21:26,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:21:26,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:21:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:21:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 18:21:28,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:21:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117499301] [2024-11-08 18:21:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117499301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:21:28,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:21:28,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:21:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22878735] [2024-11-08 18:21:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:21:28,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:21:28,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:21:28,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:21:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:21:31,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 513 [2024-11-08 18:21:31,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 592 transitions, 3123 flow. Second operand has 15 states, 15 states have (on average 424.2) internal successors, (6363), 15 states have internal predecessors, (6363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:21:31,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:21:31,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 513 [2024-11-08 18:21:31,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand