./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-array-sum.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_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/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_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/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_61b19930-8f79-4a5b-b246-2a79ee75c014/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 e53c8de1752bcaae88365f4089aa38090949baac13984623f5e7e3707a7b4c63 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:43,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:43,617 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:51:43,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:43,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:43,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:43,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:43,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:43,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:43,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:43,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:43,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:43,653 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:43,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:43,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:43,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:43,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:43,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:43,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:43,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:43,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:43,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:43,664 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:51:43,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:43,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:43,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:43,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:43,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:43,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:43,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:43,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:43,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:43,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:43,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:43,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:43,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:43,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:43,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:43,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:43,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:43,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:43,673 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_61b19930-8f79-4a5b-b246-2a79ee75c014/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e53c8de1752bcaae88365f4089aa38090949baac13984623f5e7e3707a7b4c63 [2023-11-26 11:51:43,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:44,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:44,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:44,058 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:44,058 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:44,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2023-11-26 11:51:47,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:47,509 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:47,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2023-11-26 11:51:47,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/data/ede57f252/059c829868cc41589cf77638ac7c3b3c/FLAG431ab0962 [2023-11-26 11:51:47,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/data/ede57f252/059c829868cc41589cf77638ac7c3b3c [2023-11-26 11:51:47,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:47,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:47,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:47,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:47,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:47,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd396c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47, skipping insertion in model container [2023-11-26 11:51:47,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:47,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:47,825 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:47,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:47,875 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:47,875 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:47,881 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:47,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47 WrapperNode [2023-11-26 11:51:47,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:47,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:47,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:47,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:47,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,942 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 178 [2023-11-26 11:51:47,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:47,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:47,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:47,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:47,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:47,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:47,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:47,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:47,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:47,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (1/1) ... [2023-11-26 11:51:48,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:48,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:48,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:51:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:51:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:51:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:51:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:51:48,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:51:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:51:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:51:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:51:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:51:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:51:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:51:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:48,089 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 11:51:48,212 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:48,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:48,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:49,047 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:49,049 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 11:51:49,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:49 BoogieIcfgContainer [2023-11-26 11:51:49,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:49,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:49,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:49,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:49,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:47" (1/3) ... [2023-11-26 11:51:49,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230572c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:49, skipping insertion in model container [2023-11-26 11:51:49,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:47" (2/3) ... [2023-11-26 11:51:49,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230572c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:49, skipping insertion in model container [2023-11-26 11:51:49,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:49" (3/3) ... [2023-11-26 11:51:49,066 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2023-11-26 11:51:49,076 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:51:49,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:49,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-26 11:51:49,088 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:51:49,216 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:51:49,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 295 transitions, 611 flow [2023-11-26 11:51:49,456 INFO L124 PetriNetUnfolderBase]: 16/292 cut-off events. [2023-11-26 11:51:49,456 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:51:49,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 292 events. 16/292 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 388 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 212. Up to 2 conditions per place. [2023-11-26 11:51:49,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 295 transitions, 611 flow [2023-11-26 11:51:49,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 269 transitions, 556 flow [2023-11-26 11:51:49,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:49,512 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;@7c185c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:49,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-26 11:51:49,522 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:51:49,522 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-26 11:51:49,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:51:49,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:49,524 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] [2023-11-26 11:51:49,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:49,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:49,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1576009876, now seen corresponding path program 1 times [2023-11-26 11:51:49,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285881676] [2023-11-26 11:51:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,803 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 11:51:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285881676] [2023-11-26 11:51:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285881676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:49,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:49,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547560922] [2023-11-26 11:51:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:49,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:49,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:49,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 295 [2023-11-26 11:51:49,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 269 transitions, 556 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 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 11:51:49,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:49,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 295 [2023-11-26 11:51:49,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:50,289 INFO L124 PetriNetUnfolderBase]: 110/784 cut-off events. [2023-11-26 11:51:50,290 INFO L125 PetriNetUnfolderBase]: For 82/90 co-relation queries the response was YES. [2023-11-26 11:51:50,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 784 events. 110/784 cut-off events. For 82/90 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4169 event pairs, 71 based on Foata normal form. 6/670 useless extension candidates. Maximal degree in co-relation 749. Up to 174 conditions per place. [2023-11-26 11:51:50,307 INFO L140 encePairwiseOnDemand]: 273/295 looper letters, 19 selfloop transitions, 2 changer transitions 4/249 dead transitions. [2023-11-26 11:51:50,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 249 transitions, 558 flow [2023-11-26 11:51:50,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2023-11-26 11:51:50,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8971751412429378 [2023-11-26 11:51:50,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 794 transitions. [2023-11-26 11:51:50,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 794 transitions. [2023-11-26 11:51:50,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:50,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 794 transitions. [2023-11-26 11:51:50,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 11:51:50,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:50,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:50,356 INFO L175 Difference]: Start difference. First operand has 264 places, 269 transitions, 556 flow. Second operand 3 states and 794 transitions. [2023-11-26 11:51:50,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 249 transitions, 558 flow [2023-11-26 11:51:50,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 249 transitions, 546 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:51:50,370 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 500 flow [2023-11-26 11:51:50,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=249, PETRI_TRANSITIONS=245} [2023-11-26 11:51:50,376 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -15 predicate places. [2023-11-26 11:51:50,377 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 500 flow [2023-11-26 11:51:50,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 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 11:51:50,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:50,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:50,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:50,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:50,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,379 INFO L85 PathProgramCache]: Analyzing trace with hash -283948897, now seen corresponding path program 1 times [2023-11-26 11:51:50,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:50,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120797781] [2023-11-26 11:51:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:50,440 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 11:51:50,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:50,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120797781] [2023-11-26 11:51:50,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120797781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:50,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:50,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:50,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726589376] [2023-11-26 11:51:50,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:50,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:50,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:50,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 295 [2023-11-26 11:51:50,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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 11:51:50,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:50,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 295 [2023-11-26 11:51:50,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:50,754 INFO L124 PetriNetUnfolderBase]: 262/991 cut-off events. [2023-11-26 11:51:50,755 INFO L125 PetriNetUnfolderBase]: For 32/54 co-relation queries the response was YES. [2023-11-26 11:51:50,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1381 conditions, 991 events. 262/991 cut-off events. For 32/54 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5596 event pairs, 164 based on Foata normal form. 1/858 useless extension candidates. Maximal degree in co-relation 1350. Up to 365 conditions per place. [2023-11-26 11:51:50,769 INFO L140 encePairwiseOnDemand]: 288/295 looper letters, 20 selfloop transitions, 1 changer transitions 2/239 dead transitions. [2023-11-26 11:51:50,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 239 transitions, 532 flow [2023-11-26 11:51:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:50,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 763 transitions. [2023-11-26 11:51:50,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8621468926553673 [2023-11-26 11:51:50,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 763 transitions. [2023-11-26 11:51:50,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 763 transitions. [2023-11-26 11:51:50,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:50,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 763 transitions. [2023-11-26 11:51:50,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 11:51:50,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:50,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:50,787 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 500 flow. Second operand 3 states and 763 transitions. [2023-11-26 11:51:50,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 239 transitions, 532 flow [2023-11-26 11:51:50,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 239 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:50,801 INFO L231 Difference]: Finished difference. Result has 239 places, 237 transitions, 482 flow [2023-11-26 11:51:50,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=239, PETRI_TRANSITIONS=237} [2023-11-26 11:51:50,806 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -25 predicate places. [2023-11-26 11:51:50,807 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 237 transitions, 482 flow [2023-11-26 11:51:50,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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 11:51:50,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:50,809 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] [2023-11-26 11:51:50,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:50,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:50,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash 706601603, now seen corresponding path program 1 times [2023-11-26 11:51:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:50,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984543860] [2023-11-26 11:51:50,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:51,791 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 11:51:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984543860] [2023-11-26 11:51:51,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984543860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:51,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:51,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892655150] [2023-11-26 11:51:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:51,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:51,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:51,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:51,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:52,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 295 [2023-11-26 11:51:52,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 237 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 11:51:52,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:52,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 295 [2023-11-26 11:51:52,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:52,740 INFO L124 PetriNetUnfolderBase]: 694/1882 cut-off events. [2023-11-26 11:51:52,740 INFO L125 PetriNetUnfolderBase]: For 25/58 co-relation queries the response was YES. [2023-11-26 11:51:52,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2924 conditions, 1882 events. 694/1882 cut-off events. For 25/58 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12765 event pairs, 532 based on Foata normal form. 0/1632 useless extension candidates. Maximal degree in co-relation 2894. Up to 1008 conditions per place. [2023-11-26 11:51:52,768 INFO L140 encePairwiseOnDemand]: 283/295 looper letters, 42 selfloop transitions, 10 changer transitions 0/235 dead transitions. [2023-11-26 11:51:52,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 235 transitions, 582 flow [2023-11-26 11:51:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1374 transitions. [2023-11-26 11:51:52,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7762711864406779 [2023-11-26 11:51:52,774 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1374 transitions. [2023-11-26 11:51:52,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1374 transitions. [2023-11-26 11:51:52,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:52,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1374 transitions. [2023-11-26 11:51:52,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 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 11:51:52,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:52,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:52,788 INFO L175 Difference]: Start difference. First operand has 239 places, 237 transitions, 482 flow. Second operand 6 states and 1374 transitions. [2023-11-26 11:51:52,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 235 transitions, 582 flow [2023-11-26 11:51:52,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 235 transitions, 581 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:52,795 INFO L231 Difference]: Finished difference. Result has 239 places, 235 transitions, 497 flow [2023-11-26 11:51:52,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=497, PETRI_PLACES=239, PETRI_TRANSITIONS=235} [2023-11-26 11:51:52,797 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -25 predicate places. [2023-11-26 11:51:52,797 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 235 transitions, 497 flow [2023-11-26 11:51:52,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 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 11:51:52,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:52,800 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] [2023-11-26 11:51:52,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:51:52,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:52,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash -922955463, now seen corresponding path program 1 times [2023-11-26 11:51:52,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:52,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076128648] [2023-11-26 11:51:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:52,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:52,857 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 11:51:52,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:52,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076128648] [2023-11-26 11:51:52,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076128648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:52,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:52,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:52,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459558677] [2023-11-26 11:51:52,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:52,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:52,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:52,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:52,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 295 [2023-11-26 11:51:52,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 235 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 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 11:51:52,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:52,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 295 [2023-11-26 11:51:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:53,008 INFO L124 PetriNetUnfolderBase]: 68/475 cut-off events. [2023-11-26 11:51:53,008 INFO L125 PetriNetUnfolderBase]: For 17/20 co-relation queries the response was YES. [2023-11-26 11:51:53,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 475 events. 68/475 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1815 event pairs, 38 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 566. Up to 98 conditions per place. [2023-11-26 11:51:53,014 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 14 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2023-11-26 11:51:53,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 234 transitions, 527 flow [2023-11-26 11:51:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 785 transitions. [2023-11-26 11:51:53,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8870056497175142 [2023-11-26 11:51:53,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 785 transitions. [2023-11-26 11:51:53,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 785 transitions. [2023-11-26 11:51:53,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:53,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 785 transitions. [2023-11-26 11:51:53,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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 11:51:53,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,028 INFO L175 Difference]: Start difference. First operand has 239 places, 235 transitions, 497 flow. Second operand 3 states and 785 transitions. [2023-11-26 11:51:53,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 234 transitions, 527 flow [2023-11-26 11:51:53,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 234 transitions, 507 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:51:53,035 INFO L231 Difference]: Finished difference. Result has 235 places, 234 transitions, 479 flow [2023-11-26 11:51:53,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=235, PETRI_TRANSITIONS=234} [2023-11-26 11:51:53,038 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -29 predicate places. [2023-11-26 11:51:53,038 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 234 transitions, 479 flow [2023-11-26 11:51:53,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 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 11:51:53,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:53,040 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] [2023-11-26 11:51:53,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:51:53,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:53,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1793208703, now seen corresponding path program 1 times [2023-11-26 11:51:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197642091] [2023-11-26 11:51:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:53,116 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 11:51:53,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:53,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197642091] [2023-11-26 11:51:53,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197642091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:53,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:53,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:53,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464375346] [2023-11-26 11:51:53,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:53,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:53,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:53,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:53,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 295 [2023-11-26 11:51:53,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 234 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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 11:51:53,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:53,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 295 [2023-11-26 11:51:53,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:53,220 INFO L124 PetriNetUnfolderBase]: 44/371 cut-off events. [2023-11-26 11:51:53,220 INFO L125 PetriNetUnfolderBase]: For 17/20 co-relation queries the response was YES. [2023-11-26 11:51:53,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 371 events. 44/371 cut-off events. For 17/20 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1072 event pairs, 20 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 416. Up to 64 conditions per place. [2023-11-26 11:51:53,225 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 13 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2023-11-26 11:51:53,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 233 transitions, 507 flow [2023-11-26 11:51:53,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2023-11-26 11:51:53,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8892655367231639 [2023-11-26 11:51:53,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2023-11-26 11:51:53,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2023-11-26 11:51:53,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:53,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2023-11-26 11:51:53,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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 11:51:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,237 INFO L175 Difference]: Start difference. First operand has 235 places, 234 transitions, 479 flow. Second operand 3 states and 787 transitions. [2023-11-26 11:51:53,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 233 transitions, 507 flow [2023-11-26 11:51:53,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 233 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:53,243 INFO L231 Difference]: Finished difference. Result has 234 places, 233 transitions, 477 flow [2023-11-26 11:51:53,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=234, PETRI_TRANSITIONS=233} [2023-11-26 11:51:53,245 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -30 predicate places. [2023-11-26 11:51:53,245 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 233 transitions, 477 flow [2023-11-26 11:51:53,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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 11:51:53,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:53,246 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] [2023-11-26 11:51:53,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:51:53,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:53,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1348727367, now seen corresponding path program 1 times [2023-11-26 11:51:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065567833] [2023-11-26 11:51:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:53,309 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 11:51:53,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:53,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065567833] [2023-11-26 11:51:53,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065567833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:53,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:53,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:53,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911897945] [2023-11-26 11:51:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:53,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:53,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 295 [2023-11-26 11:51:53,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 233 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 11:51:53,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:53,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 295 [2023-11-26 11:51:53,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:53,509 INFO L124 PetriNetUnfolderBase]: 129/744 cut-off events. [2023-11-26 11:51:53,509 INFO L125 PetriNetUnfolderBase]: For 26/31 co-relation queries the response was YES. [2023-11-26 11:51:53,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 744 events. 129/744 cut-off events. For 26/31 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3830 event pairs, 38 based on Foata normal form. 2/663 useless extension candidates. Maximal degree in co-relation 922. Up to 105 conditions per place. [2023-11-26 11:51:53,519 INFO L140 encePairwiseOnDemand]: 290/295 looper letters, 17 selfloop transitions, 2 changer transitions 2/237 dead transitions. [2023-11-26 11:51:53,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 237 transitions, 527 flow [2023-11-26 11:51:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 793 transitions. [2023-11-26 11:51:53,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896045197740113 [2023-11-26 11:51:53,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 793 transitions. [2023-11-26 11:51:53,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 793 transitions. [2023-11-26 11:51:53,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:53,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 793 transitions. [2023-11-26 11:51:53,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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 11:51:53,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,530 INFO L175 Difference]: Start difference. First operand has 234 places, 233 transitions, 477 flow. Second operand 3 states and 793 transitions. [2023-11-26 11:51:53,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 237 transitions, 527 flow [2023-11-26 11:51:53,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 237 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:53,536 INFO L231 Difference]: Finished difference. Result has 232 places, 229 transitions, 469 flow [2023-11-26 11:51:53,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=232, PETRI_TRANSITIONS=229} [2023-11-26 11:51:53,540 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -32 predicate places. [2023-11-26 11:51:53,540 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 229 transitions, 469 flow [2023-11-26 11:51:53,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 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 11:51:53,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:53,541 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] [2023-11-26 11:51:53,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:51:53,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:53,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash 953149371, now seen corresponding path program 1 times [2023-11-26 11:51:53,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541478481] [2023-11-26 11:51:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:53,617 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 11:51:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541478481] [2023-11-26 11:51:53,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541478481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:53,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:53,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903276524] [2023-11-26 11:51:53,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:53,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:53,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:53,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:53,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 295 [2023-11-26 11:51:53,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 229 transitions, 469 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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 11:51:53,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:53,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 295 [2023-11-26 11:51:53,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:53,808 INFO L124 PetriNetUnfolderBase]: 113/743 cut-off events. [2023-11-26 11:51:53,809 INFO L125 PetriNetUnfolderBase]: For 31/35 co-relation queries the response was YES. [2023-11-26 11:51:53,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 743 events. 113/743 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3720 event pairs, 12 based on Foata normal form. 1/674 useless extension candidates. Maximal degree in co-relation 910. Up to 147 conditions per place. [2023-11-26 11:51:53,817 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 20 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2023-11-26 11:51:53,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 237 transitions, 534 flow [2023-11-26 11:51:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 803 transitions. [2023-11-26 11:51:53,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9073446327683616 [2023-11-26 11:51:53,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 803 transitions. [2023-11-26 11:51:53,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 803 transitions. [2023-11-26 11:51:53,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:53,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 803 transitions. [2023-11-26 11:51:53,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 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 11:51:53,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:51:53,832 INFO L175 Difference]: Start difference. First operand has 232 places, 229 transitions, 469 flow. Second operand 3 states and 803 transitions. [2023-11-26 11:51:53,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 237 transitions, 534 flow [2023-11-26 11:51:53,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 237 transitions, 530 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:53,838 INFO L231 Difference]: Finished difference. Result has 230 places, 230 transitions, 477 flow [2023-11-26 11:51:53,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=230, PETRI_TRANSITIONS=230} [2023-11-26 11:51:53,841 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -34 predicate places. [2023-11-26 11:51:53,841 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 230 transitions, 477 flow [2023-11-26 11:51:53,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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 11:51:53,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:53,842 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 11:51:53,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:51:53,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:53,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,843 INFO L85 PathProgramCache]: Analyzing trace with hash 280637791, now seen corresponding path program 1 times [2023-11-26 11:51:53,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634117187] [2023-11-26 11:51:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:54,067 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 11:51:54,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:54,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634117187] [2023-11-26 11:51:54,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634117187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:54,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:51:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070590736] [2023-11-26 11:51:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:54,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:51:54,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:54,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:51:54,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:51:54,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2023-11-26 11:51:54,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 230 transitions, 477 flow. Second operand has 7 states, 7 states have (on average 243.0) internal successors, (1701), 7 states have internal predecessors, (1701), 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 11:51:54,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:54,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2023-11-26 11:51:54,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:54,899 INFO L124 PetriNetUnfolderBase]: 258/1501 cut-off events. [2023-11-26 11:51:54,899 INFO L125 PetriNetUnfolderBase]: For 135/162 co-relation queries the response was YES. [2023-11-26 11:51:54,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2131 conditions, 1501 events. 258/1501 cut-off events. For 135/162 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 9184 event pairs, 150 based on Foata normal form. 14/1421 useless extension candidates. Maximal degree in co-relation 2099. Up to 274 conditions per place. [2023-11-26 11:51:54,921 INFO L140 encePairwiseOnDemand]: 274/295 looper letters, 46 selfloop transitions, 28 changer transitions 0/269 dead transitions. [2023-11-26 11:51:54,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 269 transitions, 721 flow [2023-11-26 11:51:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:51:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:51:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2472 transitions. [2023-11-26 11:51:54,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8379661016949153 [2023-11-26 11:51:54,930 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2472 transitions. [2023-11-26 11:51:54,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2472 transitions. [2023-11-26 11:51:54,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:54,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2472 transitions. [2023-11-26 11:51:54,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 247.2) internal successors, (2472), 10 states have internal predecessors, (2472), 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 11:51:54,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 295.0) internal successors, (3245), 11 states have internal predecessors, (3245), 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 11:51:54,949 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 295.0) internal successors, (3245), 11 states have internal predecessors, (3245), 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 11:51:54,950 INFO L175 Difference]: Start difference. First operand has 230 places, 230 transitions, 477 flow. Second operand 10 states and 2472 transitions. [2023-11-26 11:51:54,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 269 transitions, 721 flow [2023-11-26 11:51:54,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 269 transitions, 721 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:54,957 INFO L231 Difference]: Finished difference. Result has 243 places, 246 transitions, 606 flow [2023-11-26 11:51:54,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=606, PETRI_PLACES=243, PETRI_TRANSITIONS=246} [2023-11-26 11:51:54,958 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -21 predicate places. [2023-11-26 11:51:54,959 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 246 transitions, 606 flow [2023-11-26 11:51:54,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 243.0) internal successors, (1701), 7 states have internal predecessors, (1701), 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 11:51:54,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:54,960 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] [2023-11-26 11:51:54,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:51:54,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:54,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2034417387, now seen corresponding path program 1 times [2023-11-26 11:51:54,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326066523] [2023-11-26 11:51:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:55,534 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 11:51:55,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:55,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326066523] [2023-11-26 11:51:55,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326066523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:55,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:55,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:55,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236230259] [2023-11-26 11:51:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:55,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:55,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:55,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:55,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:55,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 295 [2023-11-26 11:51:55,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 246 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 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 11:51:55,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:55,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 295 [2023-11-26 11:51:55,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:56,736 INFO L124 PetriNetUnfolderBase]: 485/2167 cut-off events. [2023-11-26 11:51:56,736 INFO L125 PetriNetUnfolderBase]: For 263/432 co-relation queries the response was YES. [2023-11-26 11:51:56,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3299 conditions, 2167 events. 485/2167 cut-off events. For 263/432 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14690 event pairs, 105 based on Foata normal form. 25/2019 useless extension candidates. Maximal degree in co-relation 3259. Up to 467 conditions per place. [2023-11-26 11:51:56,775 INFO L140 encePairwiseOnDemand]: 288/295 looper letters, 41 selfloop transitions, 13 changer transitions 0/273 dead transitions. [2023-11-26 11:51:56,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 273 transitions, 791 flow [2023-11-26 11:51:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1526 transitions. [2023-11-26 11:51:56,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8621468926553673 [2023-11-26 11:51:56,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1526 transitions. [2023-11-26 11:51:56,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1526 transitions. [2023-11-26 11:51:56,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:56,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1526 transitions. [2023-11-26 11:51:56,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 254.33333333333334) internal successors, (1526), 6 states have internal predecessors, (1526), 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 11:51:56,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:56,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:56,794 INFO L175 Difference]: Start difference. First operand has 243 places, 246 transitions, 606 flow. Second operand 6 states and 1526 transitions. [2023-11-26 11:51:56,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 273 transitions, 791 flow [2023-11-26 11:51:56,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 273 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:56,803 INFO L231 Difference]: Finished difference. Result has 253 places, 258 transitions, 716 flow [2023-11-26 11:51:56,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=716, PETRI_PLACES=253, PETRI_TRANSITIONS=258} [2023-11-26 11:51:56,805 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -11 predicate places. [2023-11-26 11:51:56,805 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 258 transitions, 716 flow [2023-11-26 11:51:56,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 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 11:51:56,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:56,807 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] [2023-11-26 11:51:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:51:56,807 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:56,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash 233877195, now seen corresponding path program 1 times [2023-11-26 11:51:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:56,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532881935] [2023-11-26 11:51:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,047 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 11:51:57,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:57,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532881935] [2023-11-26 11:51:57,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532881935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:57,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:57,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:51:57,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483332312] [2023-11-26 11:51:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:57,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:51:57,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:51:57,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:51:57,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2023-11-26 11:51:57,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 258 transitions, 716 flow. Second operand has 7 states, 7 states have (on average 243.42857142857142) internal successors, (1704), 7 states have internal predecessors, (1704), 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 11:51:57,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:57,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2023-11-26 11:51:57,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:57,811 INFO L124 PetriNetUnfolderBase]: 447/1693 cut-off events. [2023-11-26 11:51:57,812 INFO L125 PetriNetUnfolderBase]: For 472/574 co-relation queries the response was YES. [2023-11-26 11:51:57,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 1693 events. 447/1693 cut-off events. For 472/574 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11181 event pairs, 223 based on Foata normal form. 7/1605 useless extension candidates. Maximal degree in co-relation 2901. Up to 609 conditions per place. [2023-11-26 11:51:57,841 INFO L140 encePairwiseOnDemand]: 274/295 looper letters, 48 selfloop transitions, 28 changer transitions 0/277 dead transitions. [2023-11-26 11:51:57,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 277 transitions, 924 flow [2023-11-26 11:51:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:51:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:51:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2468 transitions. [2023-11-26 11:51:57,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8366101694915254 [2023-11-26 11:51:57,851 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2468 transitions. [2023-11-26 11:51:57,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2468 transitions. [2023-11-26 11:51:57,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:57,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2468 transitions. [2023-11-26 11:51:57,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 246.8) internal successors, (2468), 10 states have internal predecessors, (2468), 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 11:51:57,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 295.0) internal successors, (3245), 11 states have internal predecessors, (3245), 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 11:51:57,887 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 295.0) internal successors, (3245), 11 states have internal predecessors, (3245), 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 11:51:57,887 INFO L175 Difference]: Start difference. First operand has 253 places, 258 transitions, 716 flow. Second operand 10 states and 2468 transitions. [2023-11-26 11:51:57,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 277 transitions, 924 flow [2023-11-26 11:51:57,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 277 transitions, 924 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:57,898 INFO L231 Difference]: Finished difference. Result has 264 places, 260 transitions, 791 flow [2023-11-26 11:51:57,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=791, PETRI_PLACES=264, PETRI_TRANSITIONS=260} [2023-11-26 11:51:57,901 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 0 predicate places. [2023-11-26 11:51:57,901 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 260 transitions, 791 flow [2023-11-26 11:51:57,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 243.42857142857142) internal successors, (1704), 7 states have internal predecessors, (1704), 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 11:51:57,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:57,903 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] [2023-11-26 11:51:57,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:51:57,903 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:57,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2137754134, now seen corresponding path program 1 times [2023-11-26 11:51:57,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:57,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147142365] [2023-11-26 11:51:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:57,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,543 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 11:51:58,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:58,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147142365] [2023-11-26 11:51:58,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147142365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:58,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:58,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415972306] [2023-11-26 11:51:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:58,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:58,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:58,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 295 [2023-11-26 11:51:58,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 260 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 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 11:51:58,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:58,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 295 [2023-11-26 11:51:58,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:59,648 INFO L124 PetriNetUnfolderBase]: 519/2058 cut-off events. [2023-11-26 11:51:59,648 INFO L125 PetriNetUnfolderBase]: For 1021/1070 co-relation queries the response was YES. [2023-11-26 11:51:59,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3705 conditions, 2058 events. 519/2058 cut-off events. For 1021/1070 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 14167 event pairs, 104 based on Foata normal form. 24/1986 useless extension candidates. Maximal degree in co-relation 3654. Up to 479 conditions per place. [2023-11-26 11:51:59,687 INFO L140 encePairwiseOnDemand]: 288/295 looper letters, 48 selfloop transitions, 17 changer transitions 0/290 dead transitions. [2023-11-26 11:51:59,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 290 transitions, 1051 flow [2023-11-26 11:51:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:59,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1525 transitions. [2023-11-26 11:51:59,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8615819209039548 [2023-11-26 11:51:59,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1525 transitions. [2023-11-26 11:51:59,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1525 transitions. [2023-11-26 11:51:59,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:59,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1525 transitions. [2023-11-26 11:51:59,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 254.16666666666666) internal successors, (1525), 6 states have internal predecessors, (1525), 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 11:51:59,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:59,709 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:51:59,709 INFO L175 Difference]: Start difference. First operand has 264 places, 260 transitions, 791 flow. Second operand 6 states and 1525 transitions. [2023-11-26 11:51:59,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 290 transitions, 1051 flow [2023-11-26 11:51:59,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 290 transitions, 1004 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-26 11:51:59,727 INFO L231 Difference]: Finished difference. Result has 267 places, 276 transitions, 928 flow [2023-11-26 11:51:59,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=928, PETRI_PLACES=267, PETRI_TRANSITIONS=276} [2023-11-26 11:51:59,729 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 3 predicate places. [2023-11-26 11:51:59,729 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 276 transitions, 928 flow [2023-11-26 11:51:59,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 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 11:51:59,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:59,730 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] [2023-11-26 11:51:59,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:51:59,731 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:51:59,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash 776835770, now seen corresponding path program 1 times [2023-11-26 11:51:59,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303088400] [2023-11-26 11:51:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:52:00,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:00,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303088400] [2023-11-26 11:52:00,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303088400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:00,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:00,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:52:00,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760004179] [2023-11-26 11:52:00,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:00,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:00,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:00,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:00,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:00,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 295 [2023-11-26 11:52:00,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 276 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 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 11:52:00,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:00,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 295 [2023-11-26 11:52:00,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:03,306 INFO L124 PetriNetUnfolderBase]: 1793/5963 cut-off events. [2023-11-26 11:52:03,306 INFO L125 PetriNetUnfolderBase]: For 6378/6631 co-relation queries the response was YES. [2023-11-26 11:52:03,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12590 conditions, 5963 events. 1793/5963 cut-off events. For 6378/6631 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 57014 event pairs, 496 based on Foata normal form. 3/5746 useless extension candidates. Maximal degree in co-relation 12537. Up to 1900 conditions per place. [2023-11-26 11:52:03,419 INFO L140 encePairwiseOnDemand]: 287/295 looper letters, 71 selfloop transitions, 26 changer transitions 0/321 dead transitions. [2023-11-26 11:52:03,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 321 transitions, 1348 flow [2023-11-26 11:52:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:03,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:52:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1529 transitions. [2023-11-26 11:52:03,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8638418079096045 [2023-11-26 11:52:03,426 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1529 transitions. [2023-11-26 11:52:03,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1529 transitions. [2023-11-26 11:52:03,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:03,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1529 transitions. [2023-11-26 11:52:03,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 254.83333333333334) internal successors, (1529), 6 states have internal predecessors, (1529), 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 11:52:03,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:52:03,438 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:52:03,438 INFO L175 Difference]: Start difference. First operand has 267 places, 276 transitions, 928 flow. Second operand 6 states and 1529 transitions. [2023-11-26 11:52:03,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 321 transitions, 1348 flow [2023-11-26 11:52:03,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 321 transitions, 1348 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:52:03,518 INFO L231 Difference]: Finished difference. Result has 277 places, 301 transitions, 1232 flow [2023-11-26 11:52:03,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1232, PETRI_PLACES=277, PETRI_TRANSITIONS=301} [2023-11-26 11:52:03,521 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 13 predicate places. [2023-11-26 11:52:03,521 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 301 transitions, 1232 flow [2023-11-26 11:52:03,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 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 11:52:03,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:03,522 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 11:52:03,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:52:03,523 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:03,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:03,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1424954557, now seen corresponding path program 1 times [2023-11-26 11:52:03,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:03,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720125397] [2023-11-26 11:52:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:03,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:52:03,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:03,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720125397] [2023-11-26 11:52:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720125397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:03,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:03,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520917791] [2023-11-26 11:52:03,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:03,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:03,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:03,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:03,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 295 [2023-11-26 11:52:03,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 301 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 11:52:03,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:03,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 295 [2023-11-26 11:52:03,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:05,786 INFO L124 PetriNetUnfolderBase]: 1999/6450 cut-off events. [2023-11-26 11:52:05,786 INFO L125 PetriNetUnfolderBase]: For 14785/15104 co-relation queries the response was YES. [2023-11-26 11:52:05,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15783 conditions, 6450 events. 1999/6450 cut-off events. For 14785/15104 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 62788 event pairs, 588 based on Foata normal form. 0/6214 useless extension candidates. Maximal degree in co-relation 15726. Up to 1933 conditions per place. [2023-11-26 11:52:06,069 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 69 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2023-11-26 11:52:06,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 315 transitions, 1498 flow [2023-11-26 11:52:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:52:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 793 transitions. [2023-11-26 11:52:06,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896045197740113 [2023-11-26 11:52:06,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 793 transitions. [2023-11-26 11:52:06,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 793 transitions. [2023-11-26 11:52:06,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:06,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 793 transitions. [2023-11-26 11:52:06,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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 11:52:06,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:52:06,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:52:06,085 INFO L175 Difference]: Start difference. First operand has 277 places, 301 transitions, 1232 flow. Second operand 3 states and 793 transitions. [2023-11-26 11:52:06,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 315 transitions, 1498 flow [2023-11-26 11:52:06,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 315 transitions, 1428 flow, removed 35 selfloop flow, removed 0 redundant places. [2023-11-26 11:52:06,196 INFO L231 Difference]: Finished difference. Result has 278 places, 300 transitions, 1178 flow [2023-11-26 11:52:06,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1178, PETRI_PLACES=278, PETRI_TRANSITIONS=300} [2023-11-26 11:52:06,198 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 14 predicate places. [2023-11-26 11:52:06,198 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 300 transitions, 1178 flow [2023-11-26 11:52:06,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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 11:52:06,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:06,199 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 11:52:06,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:52:06,200 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:06,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:06,201 INFO L85 PathProgramCache]: Analyzing trace with hash 475292042, now seen corresponding path program 1 times [2023-11-26 11:52:06,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:06,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838420495] [2023-11-26 11:52:06,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:06,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:07,063 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 11:52:07,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:07,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838420495] [2023-11-26 11:52:07,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838420495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:07,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:07,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:52:07,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432671803] [2023-11-26 11:52:07,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:07,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:07,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:07,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 295 [2023-11-26 11:52:07,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 300 transitions, 1178 flow. Second operand has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 11:52:07,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:07,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 295 [2023-11-26 11:52:07,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:08,759 INFO L124 PetriNetUnfolderBase]: 1060/4163 cut-off events. [2023-11-26 11:52:08,759 INFO L125 PetriNetUnfolderBase]: For 6700/6987 co-relation queries the response was YES. [2023-11-26 11:52:08,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9042 conditions, 4163 events. 1060/4163 cut-off events. For 6700/6987 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 38981 event pairs, 233 based on Foata normal form. 0/3956 useless extension candidates. Maximal degree in co-relation 8982. Up to 1163 conditions per place. [2023-11-26 11:52:08,854 INFO L140 encePairwiseOnDemand]: 290/295 looper letters, 70 selfloop transitions, 4 changer transitions 0/307 dead transitions. [2023-11-26 11:52:08,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 307 transitions, 1340 flow [2023-11-26 11:52:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:52:08,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:52:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1510 transitions. [2023-11-26 11:52:08,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8531073446327684 [2023-11-26 11:52:08,862 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1510 transitions. [2023-11-26 11:52:08,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1510 transitions. [2023-11-26 11:52:08,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:08,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1510 transitions. [2023-11-26 11:52:08,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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 11:52:08,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:52:08,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 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 11:52:08,873 INFO L175 Difference]: Start difference. First operand has 278 places, 300 transitions, 1178 flow. Second operand 6 states and 1510 transitions. [2023-11-26 11:52:08,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 307 transitions, 1340 flow [2023-11-26 11:52:08,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 307 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:52:08,905 INFO L231 Difference]: Finished difference. Result has 280 places, 299 transitions, 1180 flow [2023-11-26 11:52:08,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1180, PETRI_PLACES=280, PETRI_TRANSITIONS=299} [2023-11-26 11:52:08,907 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 16 predicate places. [2023-11-26 11:52:08,907 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 299 transitions, 1180 flow [2023-11-26 11:52:08,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 11:52:08,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:08,908 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] [2023-11-26 11:52:08,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:52:08,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:08,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:08,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1634891200, now seen corresponding path program 1 times [2023-11-26 11:52:08,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:08,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551909097] [2023-11-26 11:52:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:08,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:52:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:10,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551909097] [2023-11-26 11:52:10,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551909097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:10,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:10,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-26 11:52:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330226377] [2023-11-26 11:52:10,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:10,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 11:52:10,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:10,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 11:52:10,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:52:12,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 295 [2023-11-26 11:52:12,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 299 transitions, 1180 flow. Second operand has 18 states, 18 states have (on average 226.27777777777777) internal successors, (4073), 18 states have internal predecessors, (4073), 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 11:52:12,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:12,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 295 [2023-11-26 11:52:12,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:15,219 INFO L124 PetriNetUnfolderBase]: 1353/4406 cut-off events. [2023-11-26 11:52:15,219 INFO L125 PetriNetUnfolderBase]: For 6239/7281 co-relation queries the response was YES. [2023-11-26 11:52:15,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10200 conditions, 4406 events. 1353/4406 cut-off events. For 6239/7281 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 38658 event pairs, 77 based on Foata normal form. 159/4459 useless extension candidates. Maximal degree in co-relation 10138. Up to 805 conditions per place. [2023-11-26 11:52:15,335 INFO L140 encePairwiseOnDemand]: 272/295 looper letters, 99 selfloop transitions, 27 changer transitions 0/330 dead transitions. [2023-11-26 11:52:15,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 330 transitions, 1620 flow [2023-11-26 11:52:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:52:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-26 11:52:15,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5440 transitions. [2023-11-26 11:52:15,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.768361581920904 [2023-11-26 11:52:15,355 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5440 transitions. [2023-11-26 11:52:15,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5440 transitions. [2023-11-26 11:52:15,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:15,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5440 transitions. [2023-11-26 11:52:15,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 226.66666666666666) internal successors, (5440), 24 states have internal predecessors, (5440), 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 11:52:15,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 295.0) internal successors, (7375), 25 states have internal predecessors, (7375), 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 11:52:15,395 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 295.0) internal successors, (7375), 25 states have internal predecessors, (7375), 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 11:52:15,395 INFO L175 Difference]: Start difference. First operand has 280 places, 299 transitions, 1180 flow. Second operand 24 states and 5440 transitions. [2023-11-26 11:52:15,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 330 transitions, 1620 flow [2023-11-26 11:52:15,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 330 transitions, 1597 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:52:15,439 INFO L231 Difference]: Finished difference. Result has 297 places, 298 transitions, 1207 flow [2023-11-26 11:52:15,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1207, PETRI_PLACES=297, PETRI_TRANSITIONS=298} [2023-11-26 11:52:15,441 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 33 predicate places. [2023-11-26 11:52:15,441 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 298 transitions, 1207 flow [2023-11-26 11:52:15,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 226.27777777777777) internal successors, (4073), 18 states have internal predecessors, (4073), 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 11:52:15,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:15,444 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 11:52:15,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:52:15,444 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:15,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash -67970409, now seen corresponding path program 1 times [2023-11-26 11:52:15,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:15,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981056744] [2023-11-26 11:52:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:15,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:52:17,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:17,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981056744] [2023-11-26 11:52:17,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981056744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:17,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:17,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-26 11:52:17,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88965971] [2023-11-26 11:52:17,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:17,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 11:52:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:17,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 11:52:17,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:52:19,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 295 [2023-11-26 11:52:19,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 298 transitions, 1207 flow. Second operand has 18 states, 18 states have (on average 219.27777777777777) internal successors, (3947), 18 states have internal predecessors, (3947), 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 11:52:19,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:19,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 295 [2023-11-26 11:52:19,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:22,538 INFO L124 PetriNetUnfolderBase]: 2765/7400 cut-off events. [2023-11-26 11:52:22,538 INFO L125 PetriNetUnfolderBase]: For 8957/11017 co-relation queries the response was YES. [2023-11-26 11:52:22,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17725 conditions, 7400 events. 2765/7400 cut-off events. For 8957/11017 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 69025 event pairs, 699 based on Foata normal form. 265/7567 useless extension candidates. Maximal degree in co-relation 17664. Up to 1656 conditions per place. [2023-11-26 11:52:22,671 INFO L140 encePairwiseOnDemand]: 272/295 looper letters, 128 selfloop transitions, 28 changer transitions 0/349 dead transitions. [2023-11-26 11:52:22,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 349 transitions, 1807 flow [2023-11-26 11:52:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:52:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-26 11:52:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5080 transitions. [2023-11-26 11:52:22,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7487103905674282 [2023-11-26 11:52:22,690 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 5080 transitions. [2023-11-26 11:52:22,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 5080 transitions. [2023-11-26 11:52:22,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:22,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 5080 transitions. [2023-11-26 11:52:22,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 220.8695652173913) internal successors, (5080), 23 states have internal predecessors, (5080), 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 11:52:22,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 295.0) internal successors, (7080), 24 states have internal predecessors, (7080), 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 11:52:22,727 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 295.0) internal successors, (7080), 24 states have internal predecessors, (7080), 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 11:52:22,728 INFO L175 Difference]: Start difference. First operand has 297 places, 298 transitions, 1207 flow. Second operand 23 states and 5080 transitions. [2023-11-26 11:52:22,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 349 transitions, 1807 flow [2023-11-26 11:52:22,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 349 transitions, 1755 flow, removed 0 selfloop flow, removed 22 redundant places. [2023-11-26 11:52:22,781 INFO L231 Difference]: Finished difference. Result has 296 places, 297 transitions, 1207 flow [2023-11-26 11:52:22,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1207, PETRI_PLACES=296, PETRI_TRANSITIONS=297} [2023-11-26 11:52:22,783 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 32 predicate places. [2023-11-26 11:52:22,784 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 297 transitions, 1207 flow [2023-11-26 11:52:22,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 219.27777777777777) internal successors, (3947), 18 states have internal predecessors, (3947), 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 11:52:22,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:22,788 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] [2023-11-26 11:52:22,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:52:22,788 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:22,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:22,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1120197661, now seen corresponding path program 1 times [2023-11-26 11:52:22,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:22,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106823823] [2023-11-26 11:52:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:22,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:22,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:22,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106823823] [2023-11-26 11:52:22,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106823823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:22,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:22,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:52:22,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216002390] [2023-11-26 11:52:22,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:22,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:52:22,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:22,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:52:22,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:52:22,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 295 [2023-11-26 11:52:22,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 297 transitions, 1207 flow. Second operand has 3 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 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 11:52:22,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:22,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 295 [2023-11-26 11:52:22,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:24,190 INFO L124 PetriNetUnfolderBase]: 1032/4199 cut-off events. [2023-11-26 11:52:24,191 INFO L125 PetriNetUnfolderBase]: For 7150/7458 co-relation queries the response was YES. [2023-11-26 11:52:24,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9092 conditions, 4199 events. 1032/4199 cut-off events. For 7150/7458 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 40024 event pairs, 243 based on Foata normal form. 5/3992 useless extension candidates. Maximal degree in co-relation 9035. Up to 1194 conditions per place. [2023-11-26 11:52:24,257 INFO L140 encePairwiseOnDemand]: 293/295 looper letters, 50 selfloop transitions, 0 changer transitions 19/296 dead transitions. [2023-11-26 11:52:24,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 296 transitions, 1309 flow [2023-11-26 11:52:24,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:52:24,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:52:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-11-26 11:52:24,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8983050847457628 [2023-11-26 11:52:24,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-11-26 11:52:24,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-11-26 11:52:24,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:24,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-11-26 11:52:24,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 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 11:52:24,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:52:24,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 11:52:24,267 INFO L175 Difference]: Start difference. First operand has 296 places, 297 transitions, 1207 flow. Second operand 3 states and 795 transitions. [2023-11-26 11:52:24,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 296 transitions, 1309 flow [2023-11-26 11:52:24,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 296 transitions, 1253 flow, removed 0 selfloop flow, removed 22 redundant places. [2023-11-26 11:52:24,302 INFO L231 Difference]: Finished difference. Result has 275 places, 277 transitions, 1053 flow [2023-11-26 11:52:24,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1053, PETRI_PLACES=275, PETRI_TRANSITIONS=277} [2023-11-26 11:52:24,304 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 11 predicate places. [2023-11-26 11:52:24,304 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 277 transitions, 1053 flow [2023-11-26 11:52:24,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 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 11:52:24,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:24,305 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] [2023-11-26 11:52:24,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:52:24,305 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:24,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1011746359, now seen corresponding path program 1 times [2023-11-26 11:52:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308695004] [2023-11-26 11:52:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:52:24,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:24,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308695004] [2023-11-26 11:52:24,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308695004] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:24,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882992815] [2023-11-26 11:52:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:24,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:24,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:24,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:24,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:52:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:24,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:52:24,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:52:25,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:52:25,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882992815] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:25,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:52:25,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-11-26 11:52:25,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79577382] [2023-11-26 11:52:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:25,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:52:25,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:52:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:52:25,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2023-11-26 11:52:25,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 277 transitions, 1053 flow. Second operand has 7 states, 7 states have (on average 241.28571428571428) internal successors, (1689), 7 states have internal predecessors, (1689), 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 11:52:25,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:52:25,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2023-11-26 11:52:25,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:26,751 INFO L124 PetriNetUnfolderBase]: 1565/5311 cut-off events. [2023-11-26 11:52:26,751 INFO L125 PetriNetUnfolderBase]: For 9372/9661 co-relation queries the response was YES. [2023-11-26 11:52:26,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12256 conditions, 5311 events. 1565/5311 cut-off events. For 9372/9661 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 48926 event pairs, 455 based on Foata normal form. 43/5147 useless extension candidates. Maximal degree in co-relation 12231. Up to 1126 conditions per place. [2023-11-26 11:52:26,804 INFO L140 encePairwiseOnDemand]: 287/295 looper letters, 85 selfloop transitions, 8 changer transitions 0/290 dead transitions. [2023-11-26 11:52:26,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 290 transitions, 1304 flow [2023-11-26 11:52:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:52:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 11:52:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1704 transitions. [2023-11-26 11:52:26,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.825181598062954 [2023-11-26 11:52:26,808 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1704 transitions. [2023-11-26 11:52:26,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1704 transitions. [2023-11-26 11:52:26,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:52:26,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1704 transitions. [2023-11-26 11:52:26,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 243.42857142857142) internal successors, (1704), 7 states have internal predecessors, (1704), 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 11:52:26,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 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 11:52:26,817 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 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 11:52:26,817 INFO L175 Difference]: Start difference. First operand has 275 places, 277 transitions, 1053 flow. Second operand 7 states and 1704 transitions. [2023-11-26 11:52:26,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 290 transitions, 1304 flow [2023-11-26 11:52:26,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 290 transitions, 1234 flow, removed 20 selfloop flow, removed 10 redundant places. [2023-11-26 11:52:26,900 INFO L231 Difference]: Finished difference. Result has 265 places, 275 transitions, 976 flow [2023-11-26 11:52:26,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=976, PETRI_PLACES=265, PETRI_TRANSITIONS=275} [2023-11-26 11:52:26,901 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, 1 predicate places. [2023-11-26 11:52:26,901 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 275 transitions, 976 flow [2023-11-26 11:52:26,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 241.28571428571428) internal successors, (1689), 7 states have internal predecessors, (1689), 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 11:52:26,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:52:26,902 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:26,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:27,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61b19930-8f79-4a5b-b246-2a79ee75c014/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:27,110 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:52:27,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash 226772745, now seen corresponding path program 1 times [2023-11-26 11:52:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:27,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573660371] [2023-11-26 11:52:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:27,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 11:52:28,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573660371] [2023-11-26 11:52:28,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573660371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-26 11:52:28,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166116837] [2023-11-26 11:52:28,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:28,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 11:52:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:28,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 11:52:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306