./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme --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 39e90898aa78f5642c5c7d6f9df6b2e15e069a046a9465d5d61576c4b07f46b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:50,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:50,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:58:50,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:50,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:50,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:50,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:50,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:50,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:50,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:50,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:50,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:50,591 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:50,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:50,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:50,594 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:50,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:50,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:50,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:50,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:50,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:50,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:50,597 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:58:50,598 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:50,598 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:50,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:50,599 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:50,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:50,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:50,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:50,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:50,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:50,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:50,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:50,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:50,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:50,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:50,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:50,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:50,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:50,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:50,606 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_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39e90898aa78f5642c5c7d6f9df6b2e15e069a046a9465d5d61576c4b07f46b8 [2023-11-26 11:58:50,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:50,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:50,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:50,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:50,961 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:50,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2023-11-26 11:58:54,197 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:54,417 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:54,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2023-11-26 11:58:54,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/data/b3884e121/2507c9fd3e9945cdb3b88971a18eaa49/FLAG59d074df3 [2023-11-26 11:58:54,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/data/b3884e121/2507c9fd3e9945cdb3b88971a18eaa49 [2023-11-26 11:58:54,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:54,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:54,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:54,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:54,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:54,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c177ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54, skipping insertion in model container [2023-11-26 11:58:54,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,486 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:54,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:54,760 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:54,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:54,827 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:58:54,827 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:58:54,838 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:54,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54 WrapperNode [2023-11-26 11:58:54,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:54,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:54,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:54,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:54,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,940 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 454 [2023-11-26 11:58:54,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:54,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:54,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:54,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:54,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:54,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:55,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:55,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:55,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:55,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (1/1) ... [2023-11-26 11:58:55,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:55,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:55,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:55,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d591ca0a-4c2e-46b4-a9fc-ae92560287ee/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:58:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:58:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:58:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:58:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:58:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:58:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:58:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:58:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:58:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:58:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:58:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:58:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:55,151 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:58:55,297 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:55,299 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:56,398 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:56,736 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:56,736 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-26 11:58:56,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:56 BoogieIcfgContainer [2023-11-26 11:58:56,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:56,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:56,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:56,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:56,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:54" (1/3) ... [2023-11-26 11:58:56,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331fe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:56, skipping insertion in model container [2023-11-26 11:58:56,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:54" (2/3) ... [2023-11-26 11:58:56,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4331fe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:56, skipping insertion in model container [2023-11-26 11:58:56,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:56" (3/3) ... [2023-11-26 11:58:56,752 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2023-11-26 11:58:56,761 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:58:56,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:56,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-11-26 11:58:56,771 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:58:56,938 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:58:57,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 443 transitions, 907 flow [2023-11-26 11:58:57,246 INFO L124 PetriNetUnfolderBase]: 26/440 cut-off events. [2023-11-26 11:58:57,246 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:58:57,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 440 events. 26/440 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 854 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 322. Up to 2 conditions per place. [2023-11-26 11:58:57,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 443 transitions, 907 flow [2023-11-26 11:58:57,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 417 transitions, 852 flow [2023-11-26 11:58:57,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:57,304 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1964dc37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:57,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2023-11-26 11:58:57,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:58:57,315 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-26 11:58:57,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:58:57,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:57,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:57,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:58:57,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:57,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1516562233, now seen corresponding path program 1 times [2023-11-26 11:58:57,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:57,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677994549] [2023-11-26 11:58:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:57,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:57,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677994549] [2023-11-26 11:58:57,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677994549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:57,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:57,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:57,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367912911] [2023-11-26 11:58:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:57,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:57,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:57,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 443 [2023-11-26 11:58:57,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 417 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:57,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:57,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 443 [2023-11-26 11:58:57,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:58,219 INFO L124 PetriNetUnfolderBase]: 75/1150 cut-off events. [2023-11-26 11:58:58,219 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 11:58:58,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 1150 events. 75/1150 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6374 event pairs, 38 based on Foata normal form. 80/1040 useless extension candidates. Maximal degree in co-relation 726. Up to 92 conditions per place. [2023-11-26 11:58:58,240 INFO L140 encePairwiseOnDemand]: 412/443 looper letters, 16 selfloop transitions, 2 changer transitions 5/388 dead transitions. [2023-11-26 11:58:58,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 388 transitions, 830 flow [2023-11-26 11:58:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:58:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1226 transitions. [2023-11-26 11:58:58,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9224981188863808 [2023-11-26 11:58:58,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1226 transitions. [2023-11-26 11:58:58,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1226 transitions. [2023-11-26 11:58:58,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:58,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1226 transitions. [2023-11-26 11:58:58,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,301 INFO L175 Difference]: Start difference. First operand has 402 places, 417 transitions, 852 flow. Second operand 3 states and 1226 transitions. [2023-11-26 11:58:58,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 388 transitions, 830 flow [2023-11-26 11:58:58,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 388 transitions, 818 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:58:58,324 INFO L231 Difference]: Finished difference. Result has 385 places, 383 transitions, 776 flow [2023-11-26 11:58:58,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=385, PETRI_TRANSITIONS=383} [2023-11-26 11:58:58,331 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -17 predicate places. [2023-11-26 11:58:58,332 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 383 transitions, 776 flow [2023-11-26 11:58:58,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:58,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:58,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:58,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:58:58,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:58,344 INFO L85 PathProgramCache]: Analyzing trace with hash 500203666, now seen corresponding path program 1 times [2023-11-26 11:58:58,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:58,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076210855] [2023-11-26 11:58:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:58,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:58,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:58,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076210855] [2023-11-26 11:58:58,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076210855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:58,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:58,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:58,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757722121] [2023-11-26 11:58:58,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:58,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:58,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:58,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 443 [2023-11-26 11:58:58,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 383 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:58,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 443 [2023-11-26 11:58:58,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:58,958 INFO L124 PetriNetUnfolderBase]: 64/983 cut-off events. [2023-11-26 11:58:58,959 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2023-11-26 11:58:58,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 983 events. 64/983 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4874 event pairs, 34 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1053. Up to 86 conditions per place. [2023-11-26 11:58:58,974 INFO L140 encePairwiseOnDemand]: 440/443 looper letters, 16 selfloop transitions, 2 changer transitions 0/382 dead transitions. [2023-11-26 11:58:58,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 382 transitions, 810 flow [2023-11-26 11:58:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:58:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2023-11-26 11:58:58,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9014296463506396 [2023-11-26 11:58:58,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1198 transitions. [2023-11-26 11:58:58,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1198 transitions. [2023-11-26 11:58:58,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:58,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1198 transitions. [2023-11-26 11:58:58,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:58,992 INFO L175 Difference]: Start difference. First operand has 385 places, 383 transitions, 776 flow. Second operand 3 states and 1198 transitions. [2023-11-26 11:58:58,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 382 transitions, 810 flow [2023-11-26 11:58:58,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 382 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:58:59,002 INFO L231 Difference]: Finished difference. Result has 379 places, 382 transitions, 774 flow [2023-11-26 11:58:59,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=774, PETRI_PLACES=379, PETRI_TRANSITIONS=382} [2023-11-26 11:58:59,008 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -23 predicate places. [2023-11-26 11:58:59,008 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 382 transitions, 774 flow [2023-11-26 11:58:59,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:59,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:59,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:59,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:58:59,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1655987376, now seen corresponding path program 1 times [2023-11-26 11:58:59,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987586317] [2023-11-26 11:58:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:59,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987586317] [2023-11-26 11:58:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987586317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:59,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:59,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:59,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890041168] [2023-11-26 11:58:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:59,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:59,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 443 [2023-11-26 11:58:59,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 382 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:59,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 443 [2023-11-26 11:58:59,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:59,469 INFO L124 PetriNetUnfolderBase]: 85/1183 cut-off events. [2023-11-26 11:58:59,469 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:58:59,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 1183 events. 85/1183 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6829 event pairs, 56 based on Foata normal form. 0/1010 useless extension candidates. Maximal degree in co-relation 1275. Up to 113 conditions per place. [2023-11-26 11:58:59,486 INFO L140 encePairwiseOnDemand]: 440/443 looper letters, 16 selfloop transitions, 2 changer transitions 0/381 dead transitions. [2023-11-26 11:58:59,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 381 transitions, 808 flow [2023-11-26 11:58:59,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:58:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2023-11-26 11:58:59,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9014296463506396 [2023-11-26 11:58:59,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1198 transitions. [2023-11-26 11:58:59,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1198 transitions. [2023-11-26 11:58:59,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:59,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1198 transitions. [2023-11-26 11:58:59,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,503 INFO L175 Difference]: Start difference. First operand has 379 places, 382 transitions, 774 flow. Second operand 3 states and 1198 transitions. [2023-11-26 11:58:59,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 381 transitions, 808 flow [2023-11-26 11:58:59,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 381 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:58:59,514 INFO L231 Difference]: Finished difference. Result has 378 places, 381 transitions, 772 flow [2023-11-26 11:58:59,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=378, PETRI_TRANSITIONS=381} [2023-11-26 11:58:59,517 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -24 predicate places. [2023-11-26 11:58:59,517 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 381 transitions, 772 flow [2023-11-26 11:58:59,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:59,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:59,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:58:59,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:58:59,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -9997573, now seen corresponding path program 1 times [2023-11-26 11:58:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:59,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856567487] [2023-11-26 11:58:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:59,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:59,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:59,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856567487] [2023-11-26 11:58:59,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856567487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:59,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:59,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:59,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438123631] [2023-11-26 11:58:59,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:59,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:59,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:59,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 443 [2023-11-26 11:58:59,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 381 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:59,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:59,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 443 [2023-11-26 11:58:59,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:00,047 INFO L124 PetriNetUnfolderBase]: 102/1248 cut-off events. [2023-11-26 11:59:00,047 INFO L125 PetriNetUnfolderBase]: For 13/19 co-relation queries the response was YES. [2023-11-26 11:59:00,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1248 events. 102/1248 cut-off events. For 13/19 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7180 event pairs, 59 based on Foata normal form. 0/1052 useless extension candidates. Maximal degree in co-relation 1355. Up to 136 conditions per place. [2023-11-26 11:59:00,075 INFO L140 encePairwiseOnDemand]: 438/443 looper letters, 17 selfloop transitions, 1 changer transitions 0/377 dead transitions. [2023-11-26 11:59:00,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 377 transitions, 800 flow [2023-11-26 11:59:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:00,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1195 transitions. [2023-11-26 11:59:00,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8991723100075244 [2023-11-26 11:59:00,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1195 transitions. [2023-11-26 11:59:00,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1195 transitions. [2023-11-26 11:59:00,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:00,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1195 transitions. [2023-11-26 11:59:00,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,094 INFO L175 Difference]: Start difference. First operand has 378 places, 381 transitions, 772 flow. Second operand 3 states and 1195 transitions. [2023-11-26 11:59:00,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 377 transitions, 800 flow [2023-11-26 11:59:00,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 377 transitions, 796 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:59:00,106 INFO L231 Difference]: Finished difference. Result has 374 places, 377 transitions, 762 flow [2023-11-26 11:59:00,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=374, PETRI_TRANSITIONS=377} [2023-11-26 11:59:00,109 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -28 predicate places. [2023-11-26 11:59:00,109 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 377 transitions, 762 flow [2023-11-26 11:59:00,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:00,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:00,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:59:00,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:00,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2071395686, now seen corresponding path program 1 times [2023-11-26 11:59:00,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:00,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504123522] [2023-11-26 11:59:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:00,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:00,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:00,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504123522] [2023-11-26 11:59:00,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504123522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:00,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:00,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:00,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707017525] [2023-11-26 11:59:00,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:00,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:00,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:01,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 443 [2023-11-26 11:59:01,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 377 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 341.5) internal successors, (2049), 6 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:01,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:01,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 443 [2023-11-26 11:59:01,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:13,417 INFO L124 PetriNetUnfolderBase]: 17001/56860 cut-off events. [2023-11-26 11:59:13,417 INFO L125 PetriNetUnfolderBase]: For 222/225 co-relation queries the response was YES. [2023-11-26 11:59:13,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79409 conditions, 56860 events. 17001/56860 cut-off events. For 222/225 co-relation queries the response was YES. Maximal size of possible extension queue 1367. Compared 758394 event pairs, 13635 based on Foata normal form. 0/48172 useless extension candidates. Maximal degree in co-relation 79362. Up to 22425 conditions per place. [2023-11-26 11:59:14,233 INFO L140 encePairwiseOnDemand]: 431/443 looper letters, 61 selfloop transitions, 10 changer transitions 0/375 dead transitions. [2023-11-26 11:59:14,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 375 transitions, 900 flow [2023-11-26 11:59:14,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2113 transitions. [2023-11-26 11:59:14,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7949586155003763 [2023-11-26 11:59:14,244 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2113 transitions. [2023-11-26 11:59:14,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2113 transitions. [2023-11-26 11:59:14,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:14,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2113 transitions. [2023-11-26 11:59:14,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 352.1666666666667) internal successors, (2113), 6 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,273 INFO L175 Difference]: Start difference. First operand has 374 places, 377 transitions, 762 flow. Second operand 6 states and 2113 transitions. [2023-11-26 11:59:14,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 375 transitions, 900 flow [2023-11-26 11:59:14,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 375 transitions, 899 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:59:14,292 INFO L231 Difference]: Finished difference. Result has 376 places, 375 transitions, 777 flow [2023-11-26 11:59:14,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=777, PETRI_PLACES=376, PETRI_TRANSITIONS=375} [2023-11-26 11:59:14,297 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -26 predicate places. [2023-11-26 11:59:14,298 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 375 transitions, 777 flow [2023-11-26 11:59:14,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.5) internal successors, (2049), 6 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:14,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:14,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:59:14,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:14,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 441087456, now seen corresponding path program 1 times [2023-11-26 11:59:14,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:14,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290625477] [2023-11-26 11:59:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290625477] [2023-11-26 11:59:14,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290625477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:14,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:14,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:14,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228576580] [2023-11-26 11:59:14,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:14,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:14,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 443 [2023-11-26 11:59:14,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 375 transitions, 777 flow. Second operand has 3 states, 3 states have (on average 392.3333333333333) internal successors, (1177), 3 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:14,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 443 [2023-11-26 11:59:14,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:14,945 INFO L124 PetriNetUnfolderBase]: 191/1967 cut-off events. [2023-11-26 11:59:14,945 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-26 11:59:14,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 1967 events. 191/1967 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14569 event pairs, 135 based on Foata normal form. 0/1694 useless extension candidates. Maximal degree in co-relation 2220. Up to 250 conditions per place. [2023-11-26 11:59:14,966 INFO L140 encePairwiseOnDemand]: 440/443 looper letters, 18 selfloop transitions, 2 changer transitions 0/374 dead transitions. [2023-11-26 11:59:14,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 374 transitions, 815 flow [2023-11-26 11:59:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2023-11-26 11:59:14,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8984198645598194 [2023-11-26 11:59:14,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1194 transitions. [2023-11-26 11:59:14,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1194 transitions. [2023-11-26 11:59:14,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:14,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1194 transitions. [2023-11-26 11:59:14,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,983 INFO L175 Difference]: Start difference. First operand has 376 places, 375 transitions, 777 flow. Second operand 3 states and 1194 transitions. [2023-11-26 11:59:14,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 374 transitions, 815 flow [2023-11-26 11:59:14,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 374 transitions, 795 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:59:14,994 INFO L231 Difference]: Finished difference. Result has 372 places, 374 transitions, 759 flow [2023-11-26 11:59:14,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=372, PETRI_TRANSITIONS=374} [2023-11-26 11:59:14,996 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -30 predicate places. [2023-11-26 11:59:14,996 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 374 transitions, 759 flow [2023-11-26 11:59:14,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 392.3333333333333) internal successors, (1177), 3 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:14,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:14,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:14,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:59:14,998 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:14,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1679069842, now seen corresponding path program 1 times [2023-11-26 11:59:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:14,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727409661] [2023-11-26 11:59:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:15,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727409661] [2023-11-26 11:59:15,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727409661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:15,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:15,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:15,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431012944] [2023-11-26 11:59:15,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:15,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:15,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:15,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:15,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 443 [2023-11-26 11:59:15,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 374 transitions, 759 flow. Second operand has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:15,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 443 [2023-11-26 11:59:15,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:15,699 INFO L124 PetriNetUnfolderBase]: 266/2570 cut-off events. [2023-11-26 11:59:15,700 INFO L125 PetriNetUnfolderBase]: For 42/45 co-relation queries the response was YES. [2023-11-26 11:59:15,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 2570 events. 266/2570 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 20034 event pairs, 135 based on Foata normal form. 0/2186 useless extension candidates. Maximal degree in co-relation 2872. Up to 322 conditions per place. [2023-11-26 11:59:15,738 INFO L140 encePairwiseOnDemand]: 438/443 looper letters, 17 selfloop transitions, 1 changer transitions 0/370 dead transitions. [2023-11-26 11:59:15,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 370 transitions, 787 flow [2023-11-26 11:59:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1195 transitions. [2023-11-26 11:59:15,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8991723100075244 [2023-11-26 11:59:15,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1195 transitions. [2023-11-26 11:59:15,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1195 transitions. [2023-11-26 11:59:15,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:15,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1195 transitions. [2023-11-26 11:59:15,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,757 INFO L175 Difference]: Start difference. First operand has 372 places, 374 transitions, 759 flow. Second operand 3 states and 1195 transitions. [2023-11-26 11:59:15,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 370 transitions, 787 flow [2023-11-26 11:59:15,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 370 transitions, 783 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:59:15,767 INFO L231 Difference]: Finished difference. Result has 368 places, 370 transitions, 749 flow [2023-11-26 11:59:15,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=368, PETRI_TRANSITIONS=370} [2023-11-26 11:59:15,769 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -34 predicate places. [2023-11-26 11:59:15,769 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 370 transitions, 749 flow [2023-11-26 11:59:15,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:15,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:15,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:59:15,771 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:15,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash -15930211, now seen corresponding path program 1 times [2023-11-26 11:59:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015134981] [2023-11-26 11:59:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:15,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:15,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015134981] [2023-11-26 11:59:15,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015134981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:15,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:15,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:15,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39850416] [2023-11-26 11:59:15,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:15,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:15,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:15,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:15,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:15,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 443 [2023-11-26 11:59:15,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:15,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:15,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 443 [2023-11-26 11:59:15,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:16,021 INFO L124 PetriNetUnfolderBase]: 32/674 cut-off events. [2023-11-26 11:59:16,021 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:59:16,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 674 events. 32/674 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2521 event pairs, 15 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 679. Up to 40 conditions per place. [2023-11-26 11:59:16,030 INFO L140 encePairwiseOnDemand]: 440/443 looper letters, 12 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2023-11-26 11:59:16,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 369 transitions, 775 flow [2023-11-26 11:59:16,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1206 transitions. [2023-11-26 11:59:16,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.90744920993228 [2023-11-26 11:59:16,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1206 transitions. [2023-11-26 11:59:16,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1206 transitions. [2023-11-26 11:59:16,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:16,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1206 transitions. [2023-11-26 11:59:16,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,046 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 749 flow. Second operand 3 states and 1206 transitions. [2023-11-26 11:59:16,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 369 transitions, 775 flow [2023-11-26 11:59:16,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 369 transitions, 774 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:59:16,055 INFO L231 Difference]: Finished difference. Result has 368 places, 369 transitions, 750 flow [2023-11-26 11:59:16,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=368, PETRI_TRANSITIONS=369} [2023-11-26 11:59:16,057 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -34 predicate places. [2023-11-26 11:59:16,057 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 369 transitions, 750 flow [2023-11-26 11:59:16,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:16,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:16,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:59:16,059 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:16,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1591130103, now seen corresponding path program 1 times [2023-11-26 11:59:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:16,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265722877] [2023-11-26 11:59:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:16,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:16,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265722877] [2023-11-26 11:59:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265722877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:16,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:16,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:16,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343555531] [2023-11-26 11:59:16,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:16,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:16,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:16,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:16,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 443 [2023-11-26 11:59:16,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 369 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:16,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 443 [2023-11-26 11:59:16,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:16,446 INFO L124 PetriNetUnfolderBase]: 123/1397 cut-off events. [2023-11-26 11:59:16,447 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-26 11:59:16,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1397 events. 123/1397 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8846 event pairs, 71 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 1518. Up to 150 conditions per place. [2023-11-26 11:59:16,469 INFO L140 encePairwiseOnDemand]: 438/443 looper letters, 17 selfloop transitions, 1 changer transitions 0/365 dead transitions. [2023-11-26 11:59:16,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 365 transitions, 778 flow [2023-11-26 11:59:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:16,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:16,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1195 transitions. [2023-11-26 11:59:16,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8991723100075244 [2023-11-26 11:59:16,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1195 transitions. [2023-11-26 11:59:16,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1195 transitions. [2023-11-26 11:59:16,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:16,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1195 transitions. [2023-11-26 11:59:16,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 398.3333333333333) internal successors, (1195), 3 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,487 INFO L175 Difference]: Start difference. First operand has 368 places, 369 transitions, 750 flow. Second operand 3 states and 1195 transitions. [2023-11-26 11:59:16,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 365 transitions, 778 flow [2023-11-26 11:59:16,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 365 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:59:16,497 INFO L231 Difference]: Finished difference. Result has 364 places, 365 transitions, 740 flow [2023-11-26 11:59:16,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=364, PETRI_TRANSITIONS=365} [2023-11-26 11:59:16,499 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -38 predicate places. [2023-11-26 11:59:16,500 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 365 transitions, 740 flow [2023-11-26 11:59:16,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:16,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:16,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:59:16,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:16,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:16,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1529041813, now seen corresponding path program 1 times [2023-11-26 11:59:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:16,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189849509] [2023-11-26 11:59:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:16,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:16,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189849509] [2023-11-26 11:59:16,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189849509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:16,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:16,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:16,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738646045] [2023-11-26 11:59:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:16,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:16,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:16,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:16,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 443 [2023-11-26 11:59:16,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 365 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:16,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:16,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 443 [2023-11-26 11:59:16,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:17,848 INFO L124 PetriNetUnfolderBase]: 771/4461 cut-off events. [2023-11-26 11:59:17,848 INFO L125 PetriNetUnfolderBase]: For 88/90 co-relation queries the response was YES. [2023-11-26 11:59:17,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5544 conditions, 4461 events. 771/4461 cut-off events. For 88/90 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 40418 event pairs, 362 based on Foata normal form. 0/3935 useless extension candidates. Maximal degree in co-relation 5497. Up to 1027 conditions per place. [2023-11-26 11:59:17,915 INFO L140 encePairwiseOnDemand]: 434/443 looper letters, 27 selfloop transitions, 3 changer transitions 0/367 dead transitions. [2023-11-26 11:59:17,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 367 transitions, 809 flow [2023-11-26 11:59:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:59:17,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1191 transitions. [2023-11-26 11:59:17,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8961625282167043 [2023-11-26 11:59:17,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1191 transitions. [2023-11-26 11:59:17,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1191 transitions. [2023-11-26 11:59:17,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:17,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1191 transitions. [2023-11-26 11:59:17,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:17,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:17,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:17,933 INFO L175 Difference]: Start difference. First operand has 364 places, 365 transitions, 740 flow. Second operand 3 states and 1191 transitions. [2023-11-26 11:59:17,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 367 transitions, 809 flow [2023-11-26 11:59:17,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 367 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:59:17,942 INFO L231 Difference]: Finished difference. Result has 360 places, 362 transitions, 748 flow [2023-11-26 11:59:17,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=360, PETRI_TRANSITIONS=362} [2023-11-26 11:59:17,945 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -42 predicate places. [2023-11-26 11:59:17,946 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 362 transitions, 748 flow [2023-11-26 11:59:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:17,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:17,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:17,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:59:17,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:17,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:17,948 INFO L85 PathProgramCache]: Analyzing trace with hash -257882599, now seen corresponding path program 1 times [2023-11-26 11:59:17,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:17,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163351323] [2023-11-26 11:59:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:18,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163351323] [2023-11-26 11:59:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163351323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:18,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:18,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:59:18,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772500742] [2023-11-26 11:59:18,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:18,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:18,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:18,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:18,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:18,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 443 [2023-11-26 11:59:18,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 362 transitions, 748 flow. Second operand has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:18,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:18,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 443 [2023-11-26 11:59:18,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:19,365 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1500] thread3EXIT-->L104-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem41#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][388], [474#true, 444#(= |#race~N~0| 0), 471#(= |#race~A~0| 0), Black: 469#true, 467#(= |#race~M~0| 0), 459#(= |#race~size~0| 0), 393#L104-7true]) [2023-11-26 11:59:19,365 INFO L294 olderBase$Statistics]: this new event has 308 ancestors and is cut-off event [2023-11-26 11:59:19,365 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2023-11-26 11:59:19,366 INFO L297 olderBase$Statistics]: existing Event has 273 ancestors and is cut-off event [2023-11-26 11:59:19,366 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2023-11-26 11:59:19,369 INFO L124 PetriNetUnfolderBase]: 193/2053 cut-off events. [2023-11-26 11:59:19,369 INFO L125 PetriNetUnfolderBase]: For 34/64 co-relation queries the response was YES. [2023-11-26 11:59:19,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 2053 events. 193/2053 cut-off events. For 34/64 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14157 event pairs, 84 based on Foata normal form. 11/1860 useless extension candidates. Maximal degree in co-relation 2384. Up to 187 conditions per place. [2023-11-26 11:59:19,400 INFO L140 encePairwiseOnDemand]: 430/443 looper letters, 47 selfloop transitions, 14 changer transitions 0/390 dead transitions. [2023-11-26 11:59:19,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 390 transitions, 934 flow [2023-11-26 11:59:19,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:59:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:59:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3862 transitions. [2023-11-26 11:59:19,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.871783295711061 [2023-11-26 11:59:19,418 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3862 transitions. [2023-11-26 11:59:19,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3862 transitions. [2023-11-26 11:59:19,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:19,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3862 transitions. [2023-11-26 11:59:19,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 386.2) internal successors, (3862), 10 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:19,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 443.0) internal successors, (4873), 11 states have internal predecessors, (4873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:19,453 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 443.0) internal successors, (4873), 11 states have internal predecessors, (4873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:19,453 INFO L175 Difference]: Start difference. First operand has 360 places, 362 transitions, 748 flow. Second operand 10 states and 3862 transitions. [2023-11-26 11:59:19,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 390 transitions, 934 flow [2023-11-26 11:59:19,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 390 transitions, 934 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:59:19,468 INFO L231 Difference]: Finished difference. Result has 373 places, 369 transitions, 814 flow [2023-11-26 11:59:19,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=814, PETRI_PLACES=373, PETRI_TRANSITIONS=369} [2023-11-26 11:59:19,470 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -29 predicate places. [2023-11-26 11:59:19,470 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 369 transitions, 814 flow [2023-11-26 11:59:19,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:19,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:19,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:19,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:59:19,474 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:19,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:19,475 INFO L85 PathProgramCache]: Analyzing trace with hash -895141501, now seen corresponding path program 1 times [2023-11-26 11:59:19,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964593394] [2023-11-26 11:59:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:19,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:19,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964593394] [2023-11-26 11:59:19,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964593394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:19,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:19,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:19,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257933785] [2023-11-26 11:59:19,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:19,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:19,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 391 out of 443 [2023-11-26 11:59:19,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 369 transitions, 814 flow. Second operand has 5 states, 5 states have (on average 393.0) internal successors, (1965), 5 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:19,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:19,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 391 of 443 [2023-11-26 11:59:19,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:20,910 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1500] thread3EXIT-->L104-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem41#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][374], [474#true, 444#(= |#race~N~0| 0), 471#(= |#race~A~0| 0), Black: 469#true, 467#(= |#race~M~0| 0), 459#(= |#race~size~0| 0), Black: 486#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 479#(<= ~N~0 0), 393#L104-7true, 499#(<= (+ ~M~0 1) 0), Black: 480#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 484#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|))]) [2023-11-26 11:59:20,910 INFO L294 olderBase$Statistics]: this new event has 238 ancestors and is not cut-off event [2023-11-26 11:59:20,910 INFO L297 olderBase$Statistics]: existing Event has 273 ancestors and is not cut-off event [2023-11-26 11:59:20,911 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is not cut-off event [2023-11-26 11:59:20,911 INFO L297 olderBase$Statistics]: existing Event has 252 ancestors and is not cut-off event [2023-11-26 11:59:21,107 INFO L124 PetriNetUnfolderBase]: 369/3481 cut-off events. [2023-11-26 11:59:21,108 INFO L125 PetriNetUnfolderBase]: For 119/164 co-relation queries the response was YES. [2023-11-26 11:59:21,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 3481 events. 369/3481 cut-off events. For 119/164 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 27954 event pairs, 118 based on Foata normal form. 18/3113 useless extension candidates. Maximal degree in co-relation 4116. Up to 327 conditions per place. [2023-11-26 11:59:21,168 INFO L140 encePairwiseOnDemand]: 437/443 looper letters, 31 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2023-11-26 11:59:21,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 384 transitions, 924 flow [2023-11-26 11:59:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:59:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1992 transitions. [2023-11-26 11:59:21,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8993227990970655 [2023-11-26 11:59:21,179 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1992 transitions. [2023-11-26 11:59:21,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1992 transitions. [2023-11-26 11:59:21,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:21,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1992 transitions. [2023-11-26 11:59:21,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 398.4) internal successors, (1992), 5 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:21,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 443.0) internal successors, (2658), 6 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:21,198 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 443.0) internal successors, (2658), 6 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:21,199 INFO L175 Difference]: Start difference. First operand has 373 places, 369 transitions, 814 flow. Second operand 5 states and 1992 transitions. [2023-11-26 11:59:21,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 384 transitions, 924 flow [2023-11-26 11:59:21,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 384 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:59:21,213 INFO L231 Difference]: Finished difference. Result has 378 places, 371 transitions, 835 flow [2023-11-26 11:59:21,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=835, PETRI_PLACES=378, PETRI_TRANSITIONS=371} [2023-11-26 11:59:21,215 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -24 predicate places. [2023-11-26 11:59:21,215 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 371 transitions, 835 flow [2023-11-26 11:59:21,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 393.0) internal successors, (1965), 5 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:21,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:21,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:21,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:59:21,218 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:21,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:21,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1314186145, now seen corresponding path program 1 times [2023-11-26 11:59:21,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:21,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851182483] [2023-11-26 11:59:21,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:22,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:22,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851182483] [2023-11-26 11:59:22,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851182483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:22,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:22,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:22,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159199739] [2023-11-26 11:59:22,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:22,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:22,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:22,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:22,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 443 [2023-11-26 11:59:22,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 371 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 387.6666666666667) internal successors, (2326), 6 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:22,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:22,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 443 [2023-11-26 11:59:22,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:23,820 INFO L124 PetriNetUnfolderBase]: 321/2346 cut-off events. [2023-11-26 11:59:23,820 INFO L125 PetriNetUnfolderBase]: For 56/233 co-relation queries the response was YES. [2023-11-26 11:59:23,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3013 conditions, 2346 events. 321/2346 cut-off events. For 56/233 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 17467 event pairs, 21 based on Foata normal form. 55/2180 useless extension candidates. Maximal degree in co-relation 2955. Up to 212 conditions per place. [2023-11-26 11:59:23,858 INFO L140 encePairwiseOnDemand]: 438/443 looper letters, 32 selfloop transitions, 4 changer transitions 0/382 dead transitions. [2023-11-26 11:59:23,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 382 transitions, 929 flow [2023-11-26 11:59:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2353 transitions. [2023-11-26 11:59:23,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8852520692249812 [2023-11-26 11:59:23,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2353 transitions. [2023-11-26 11:59:23,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2353 transitions. [2023-11-26 11:59:23,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:23,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2353 transitions. [2023-11-26 11:59:23,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:23,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:23,893 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:23,893 INFO L175 Difference]: Start difference. First operand has 378 places, 371 transitions, 835 flow. Second operand 6 states and 2353 transitions. [2023-11-26 11:59:23,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 382 transitions, 929 flow [2023-11-26 11:59:23,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 382 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:59:23,907 INFO L231 Difference]: Finished difference. Result has 380 places, 370 transitions, 836 flow [2023-11-26 11:59:23,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=380, PETRI_TRANSITIONS=370} [2023-11-26 11:59:23,909 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -22 predicate places. [2023-11-26 11:59:23,910 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 370 transitions, 836 flow [2023-11-26 11:59:23,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 387.6666666666667) internal successors, (2326), 6 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:23,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:23,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:23,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:59:23,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:23,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:23,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1569780698, now seen corresponding path program 1 times [2023-11-26 11:59:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:23,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345452418] [2023-11-26 11:59:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:23,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:24,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345452418] [2023-11-26 11:59:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345452418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:24,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:24,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:24,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214709963] [2023-11-26 11:59:24,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:24,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:25,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 443 [2023-11-26 11:59:25,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 370 transitions, 836 flow. Second operand has 6 states, 6 states have (on average 380.6666666666667) internal successors, (2284), 6 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:25,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:25,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 443 [2023-11-26 11:59:25,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:26,556 INFO L124 PetriNetUnfolderBase]: 511/3092 cut-off events. [2023-11-26 11:59:26,556 INFO L125 PetriNetUnfolderBase]: For 315/355 co-relation queries the response was YES. [2023-11-26 11:59:26,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4216 conditions, 3092 events. 511/3092 cut-off events. For 315/355 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 25151 event pairs, 110 based on Foata normal form. 0/2740 useless extension candidates. Maximal degree in co-relation 4159. Up to 332 conditions per place. [2023-11-26 11:59:26,602 INFO L140 encePairwiseOnDemand]: 436/443 looper letters, 45 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2023-11-26 11:59:26,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 384 transitions, 972 flow [2023-11-26 11:59:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2324 transitions. [2023-11-26 11:59:26,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743416102332581 [2023-11-26 11:59:26,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2324 transitions. [2023-11-26 11:59:26,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2324 transitions. [2023-11-26 11:59:26,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:26,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2324 transitions. [2023-11-26 11:59:26,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:26,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:26,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:26,637 INFO L175 Difference]: Start difference. First operand has 380 places, 370 transitions, 836 flow. Second operand 6 states and 2324 transitions. [2023-11-26 11:59:26,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 384 transitions, 972 flow [2023-11-26 11:59:26,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 384 transitions, 965 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:59:26,651 INFO L231 Difference]: Finished difference. Result has 379 places, 368 transitions, 835 flow [2023-11-26 11:59:26,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=835, PETRI_PLACES=379, PETRI_TRANSITIONS=368} [2023-11-26 11:59:26,653 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -23 predicate places. [2023-11-26 11:59:26,653 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 368 transitions, 835 flow [2023-11-26 11:59:26,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.6666666666667) internal successors, (2284), 6 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:26,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:26,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:26,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:59:26,655 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:26,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:26,656 INFO L85 PathProgramCache]: Analyzing trace with hash 286456171, now seen corresponding path program 1 times [2023-11-26 11:59:26,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:26,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931458525] [2023-11-26 11:59:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:27,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:27,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931458525] [2023-11-26 11:59:27,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931458525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:27,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:27,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67020298] [2023-11-26 11:59:27,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:27,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:27,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:27,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:28,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 443 [2023-11-26 11:59:28,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 368 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 380.8333333333333) internal successors, (2285), 6 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:28,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:28,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 443 [2023-11-26 11:59:28,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:29,302 INFO L124 PetriNetUnfolderBase]: 652/3560 cut-off events. [2023-11-26 11:59:29,302 INFO L125 PetriNetUnfolderBase]: For 339/378 co-relation queries the response was YES. [2023-11-26 11:59:29,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4836 conditions, 3560 events. 652/3560 cut-off events. For 339/378 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 29990 event pairs, 128 based on Foata normal form. 0/3239 useless extension candidates. Maximal degree in co-relation 4779. Up to 497 conditions per place. [2023-11-26 11:59:29,367 INFO L140 encePairwiseOnDemand]: 436/443 looper letters, 43 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2023-11-26 11:59:29,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 382 transitions, 967 flow [2023-11-26 11:59:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2324 transitions. [2023-11-26 11:59:29,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743416102332581 [2023-11-26 11:59:29,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2324 transitions. [2023-11-26 11:59:29,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2324 transitions. [2023-11-26 11:59:29,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:29,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2324 transitions. [2023-11-26 11:59:29,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:29,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:29,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:29,406 INFO L175 Difference]: Start difference. First operand has 379 places, 368 transitions, 835 flow. Second operand 6 states and 2324 transitions. [2023-11-26 11:59:29,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 382 transitions, 967 flow [2023-11-26 11:59:29,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 382 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:59:29,421 INFO L231 Difference]: Finished difference. Result has 377 places, 366 transitions, 831 flow [2023-11-26 11:59:29,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=377, PETRI_TRANSITIONS=366} [2023-11-26 11:59:29,424 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -25 predicate places. [2023-11-26 11:59:29,424 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 366 transitions, 831 flow [2023-11-26 11:59:29,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.8333333333333) internal successors, (2285), 6 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:29,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:29,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:29,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:59:29,426 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:29,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1581749377, now seen corresponding path program 1 times [2023-11-26 11:59:29,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:29,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798077037] [2023-11-26 11:59:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:59:30,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:30,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798077037] [2023-11-26 11:59:30,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798077037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:30,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:30,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:30,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037064700] [2023-11-26 11:59:30,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:30,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:31,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 443 [2023-11-26 11:59:31,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 366 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:31,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:31,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 443 [2023-11-26 11:59:31,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:32,229 INFO L124 PetriNetUnfolderBase]: 350/2666 cut-off events. [2023-11-26 11:59:32,230 INFO L125 PetriNetUnfolderBase]: For 166/255 co-relation queries the response was YES. [2023-11-26 11:59:32,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3705 conditions, 2666 events. 350/2666 cut-off events. For 166/255 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 21881 event pairs, 91 based on Foata normal form. 12/2483 useless extension candidates. Maximal degree in co-relation 3648. Up to 278 conditions per place. [2023-11-26 11:59:32,264 INFO L140 encePairwiseOnDemand]: 436/443 looper letters, 45 selfloop transitions, 5 changer transitions 0/380 dead transitions. [2023-11-26 11:59:32,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 380 transitions, 967 flow [2023-11-26 11:59:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2324 transitions. [2023-11-26 11:59:32,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743416102332581 [2023-11-26 11:59:32,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2324 transitions. [2023-11-26 11:59:32,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2324 transitions. [2023-11-26 11:59:32,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:32,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2324 transitions. [2023-11-26 11:59:32,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:32,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:32,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:32,300 INFO L175 Difference]: Start difference. First operand has 377 places, 366 transitions, 831 flow. Second operand 6 states and 2324 transitions. [2023-11-26 11:59:32,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 380 transitions, 967 flow [2023-11-26 11:59:32,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 380 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:59:32,314 INFO L231 Difference]: Finished difference. Result has 375 places, 364 transitions, 827 flow [2023-11-26 11:59:32,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=827, PETRI_PLACES=375, PETRI_TRANSITIONS=364} [2023-11-26 11:59:32,316 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -27 predicate places. [2023-11-26 11:59:32,316 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 364 transitions, 827 flow [2023-11-26 11:59:32,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:32,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:32,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:32,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:59:32,319 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:32,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1183312291, now seen corresponding path program 1 times [2023-11-26 11:59:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386569316] [2023-11-26 11:59:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:33,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:33,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:33,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386569316] [2023-11-26 11:59:33,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386569316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:33,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:33,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:33,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020154150] [2023-11-26 11:59:33,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:33,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:33,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:33,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:33,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:33,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 443 [2023-11-26 11:59:33,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 364 transitions, 827 flow. Second operand has 6 states, 6 states have (on average 387.8333333333333) internal successors, (2327), 6 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:33,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:33,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 443 [2023-11-26 11:59:33,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:59:34,370 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1500] thread3EXIT-->L104-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem41#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][364], [479#(<= ~N~0 0), 467#(= |#race~M~0| 0), Black: 486#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 459#(= |#race~size~0| 0), Black: 480#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 484#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 537#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 525#true, Black: 500#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), Black: 499#(<= (+ ~M~0 1) 0), 444#(= |#race~N~0| 0), 509#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~A~0| 0), Black: 469#true, 393#L104-7true]) [2023-11-26 11:59:34,370 INFO L294 olderBase$Statistics]: this new event has 228 ancestors and is not cut-off event [2023-11-26 11:59:34,370 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is not cut-off event [2023-11-26 11:59:34,370 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is not cut-off event [2023-11-26 11:59:34,371 INFO L297 olderBase$Statistics]: existing Event has 263 ancestors and is not cut-off event [2023-11-26 11:59:34,462 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1499] thread2EXIT-->L103-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_6|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_6|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][288], [467#(= |#race~M~0| 0), Black: 486#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 459#(= |#race~size~0| 0), Black: 479#(<= ~N~0 0), Black: 480#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 484#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 537#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 525#true, Black: 500#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), 444#(= |#race~N~0| 0), Black: 499#(<= (+ ~M~0 1) 0), 509#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~A~0| 0), Black: 469#true, 257#$Ultimate##0true, 285#L103-7true]) [2023-11-26 11:59:34,463 INFO L294 olderBase$Statistics]: this new event has 239 ancestors and is cut-off event [2023-11-26 11:59:34,463 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2023-11-26 11:59:34,463 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2023-11-26 11:59:34,463 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2023-11-26 11:59:34,475 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1500] thread3EXIT-->L104-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem41#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][364], [467#(= |#race~M~0| 0), Black: 486#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 459#(= |#race~size~0| 0), Black: 479#(<= ~N~0 0), 499#(<= (+ ~M~0 1) 0), Black: 480#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 484#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 537#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 525#true, Black: 500#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), 444#(= |#race~N~0| 0), 471#(= |#race~A~0| 0), 509#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 469#true, 393#L104-7true]) [2023-11-26 11:59:34,476 INFO L294 olderBase$Statistics]: this new event has 238 ancestors and is not cut-off event [2023-11-26 11:59:34,476 INFO L297 olderBase$Statistics]: existing Event has 252 ancestors and is not cut-off event [2023-11-26 11:59:34,476 INFO L297 olderBase$Statistics]: existing Event has 273 ancestors and is not cut-off event [2023-11-26 11:59:34,476 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is not cut-off event [2023-11-26 11:59:34,507 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1500] thread3EXIT-->L104-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem41#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem41#1=|v_ULTIMATE.start_main_#t~mem41#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][364], [467#(= |#race~M~0| 0), Black: 486#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 459#(= |#race~size~0| 0), Black: 479#(<= ~N~0 0), Black: 480#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), Black: 484#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 537#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 525#true, Black: 500#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), 444#(= |#race~N~0| 0), Black: 499#(<= (+ ~M~0 1) 0), 471#(= |#race~A~0| 0), 509#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 469#true, 393#L104-7true]) [2023-11-26 11:59:34,507 INFO L294 olderBase$Statistics]: this new event has 243 ancestors and is not cut-off event [2023-11-26 11:59:34,507 INFO L297 olderBase$Statistics]: existing Event has 257 ancestors and is not cut-off event [2023-11-26 11:59:34,508 INFO L297 olderBase$Statistics]: existing Event has 278 ancestors and is not cut-off event [2023-11-26 11:59:34,508 INFO L297 olderBase$Statistics]: existing Event has 243 ancestors and is not cut-off event [2023-11-26 11:59:34,689 INFO L124 PetriNetUnfolderBase]: 339/3155 cut-off events. [2023-11-26 11:59:34,690 INFO L125 PetriNetUnfolderBase]: For 62/131 co-relation queries the response was YES. [2023-11-26 11:59:34,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 3155 events. 339/3155 cut-off events. For 62/131 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 24524 event pairs, 46 based on Foata normal form. 28/2978 useless extension candidates. Maximal degree in co-relation 3832. Up to 158 conditions per place. [2023-11-26 11:59:34,756 INFO L140 encePairwiseOnDemand]: 438/443 looper letters, 28 selfloop transitions, 4 changer transitions 0/371 dead transitions. [2023-11-26 11:59:34,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 905 flow [2023-11-26 11:59:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:59:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2349 transitions. [2023-11-26 11:59:34,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8837471783295711 [2023-11-26 11:59:34,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2349 transitions. [2023-11-26 11:59:34,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2349 transitions. [2023-11-26 11:59:34,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:59:34,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2349 transitions. [2023-11-26 11:59:34,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 391.5) internal successors, (2349), 6 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:34,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:34,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 443.0) internal successors, (3101), 7 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:34,794 INFO L175 Difference]: Start difference. First operand has 375 places, 364 transitions, 827 flow. Second operand 6 states and 2349 transitions. [2023-11-26 11:59:34,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 905 flow [2023-11-26 11:59:34,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 371 transitions, 895 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:59:34,807 INFO L231 Difference]: Finished difference. Result has 374 places, 363 transitions, 823 flow [2023-11-26 11:59:34,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=443, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=374, PETRI_TRANSITIONS=363} [2023-11-26 11:59:34,809 INFO L281 CegarLoopForPetriNet]: 402 programPoint places, -28 predicate places. [2023-11-26 11:59:34,809 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 363 transitions, 823 flow [2023-11-26 11:59:34,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 387.8333333333333) internal successors, (2327), 6 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:34,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:59:34,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:34,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:59:34,811 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-26 11:59:34,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1379194244, now seen corresponding path program 1 times [2023-11-26 11:59:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573031748] [2023-11-26 11:59:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:34,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573031748] [2023-11-26 11:59:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573031748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:35,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840955418] [2023-11-26 11:59:35,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:35,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:35,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:35,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:35,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:36,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 443 [2023-11-26 11:59:36,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 363 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 388.0) internal successors, (2328), 6 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:36,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:59:36,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 443 [2023-11-26 11:59:36,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand