./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --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_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/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_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/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_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,966 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:43:43,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:44,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:44,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:44,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:44,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:44,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:44,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:44,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:44,006 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:44,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:44,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:44,008 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:44,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:44,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:44,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:44,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:44,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:44,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:44,013 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:43:44,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:44,015 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:44,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:44,016 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:44,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:44,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:44,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:44,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:44,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:44,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:44,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:44,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:44,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:44,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:44,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:44,023 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:44,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:44,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:44,025 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_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2023-11-26 11:43:44,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,319 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,321 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2023-11-26 11:43:47,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,897 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2023-11-26 11:43:47,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/data/94170543e/4775654b018848d4bdebd1b837dd09c4/FLAGb276aa34d [2023-11-26 11:43:47,945 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/data/94170543e/4775654b018848d4bdebd1b837dd09c4 [2023-11-26 11:43:47,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e04d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:48,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:48,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:48,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,809 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:48,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48 WrapperNode [2023-11-26 11:43:48,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:48,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:48,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,876 INFO L138 Inliner]: procedures = 269, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-11-26 11:43:48,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:48,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:48,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:48,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:48,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:48,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:48,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:48,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:48,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:48,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:43:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-26 11:43:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:43:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:43:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:43:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:43:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:43:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-26 11:43:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-26 11:43:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:49,049 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 11:43:49,246 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:49,249 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:49,561 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:49,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:49,583 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:43:49,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:49 BoogieIcfgContainer [2023-11-26 11:43:49,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:49,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:49,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:49,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:49,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:49,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ceb8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:49, skipping insertion in model container [2023-11-26 11:43:49,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (2/3) ... [2023-11-26 11:43:49,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ceb8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:49, skipping insertion in model container [2023-11-26 11:43:49,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:49" (3/3) ... [2023-11-26 11:43:49,596 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2023-11-26 11:43:49,606 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:43:49,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:49,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 11:43:49,619 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:43:49,722 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 11:43:49,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 223 flow [2023-11-26 11:43:49,849 INFO L124 PetriNetUnfolderBase]: 6/159 cut-off events. [2023-11-26 11:43:49,850 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:43:49,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 159 events. 6/159 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-11-26 11:43:49,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 223 flow [2023-11-26 11:43:49,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 223 flow [2023-11-26 11:43:49,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:49,889 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;@6defe46e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:49,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 11:43:49,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:43:49,908 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-26 11:43:49,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:43:49,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:49,909 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] [2023-11-26 11:43:49,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:43:49,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2033798269, now seen corresponding path program 1 times [2023-11-26 11:43:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:49,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802873951] [2023-11-26 11:43:49,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:49,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:50,975 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 11:43:50,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:50,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802873951] [2023-11-26 11:43:50,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802873951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:50,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:50,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606070567] [2023-11-26 11:43:50,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:50,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:43:51,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:51,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:43:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:51,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 108 [2023-11-26 11:43:51,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 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 11:43:51,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:51,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 108 [2023-11-26 11:43:51,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:51,562 INFO L124 PetriNetUnfolderBase]: 36/304 cut-off events. [2023-11-26 11:43:51,562 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:43:51,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 304 events. 36/304 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1229 event pairs, 30 based on Foata normal form. 8/279 useless extension candidates. Maximal degree in co-relation 296. Up to 93 conditions per place. [2023-11-26 11:43:51,568 INFO L140 encePairwiseOnDemand]: 89/108 looper letters, 23 selfloop transitions, 13 changer transitions 2/116 dead transitions. [2023-11-26 11:43:51,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 116 transitions, 313 flow [2023-11-26 11:43:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2023-11-26 11:43:51,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8009259259259259 [2023-11-26 11:43:51,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2023-11-26 11:43:51,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2023-11-26 11:43:51,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:51,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2023-11-26 11:43:51,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 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 11:43:51,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 11:43:51,627 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 11:43:51,630 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 223 flow. Second operand 6 states and 519 transitions. [2023-11-26 11:43:51,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 116 transitions, 313 flow [2023-11-26 11:43:51,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 313 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:51,645 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 305 flow [2023-11-26 11:43:51,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2023-11-26 11:43:51,653 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2023-11-26 11:43:51,654 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 305 flow [2023-11-26 11:43:51,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 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 11:43:51,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:51,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:51,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:43:51,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:43:51,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:51,659 INFO L85 PathProgramCache]: Analyzing trace with hash -918803626, now seen corresponding path program 1 times [2023-11-26 11:43:51,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:51,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325788833] [2023-11-26 11:43:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:51,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,761 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 11:43:51,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:51,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325788833] [2023-11-26 11:43:51,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325788833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:51,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:51,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:51,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147429741] [2023-11-26 11:43:51,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:51,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:51,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 108 [2023-11-26 11:43:51,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:43:51,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:51,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 108 [2023-11-26 11:43:51,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:51,830 INFO L124 PetriNetUnfolderBase]: 9/209 cut-off events. [2023-11-26 11:43:51,831 INFO L125 PetriNetUnfolderBase]: For 15/18 co-relation queries the response was YES. [2023-11-26 11:43:51,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 209 events. 9/209 cut-off events. For 15/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 1 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 172. Up to 16 conditions per place. [2023-11-26 11:43:51,835 INFO L140 encePairwiseOnDemand]: 104/108 looper letters, 8 selfloop transitions, 3 changer transitions 5/117 dead transitions. [2023-11-26 11:43:51,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 117 transitions, 337 flow [2023-11-26 11:43:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-26 11:43:51,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2023-11-26 11:43:51,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-26 11:43:51,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-26 11:43:51,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:51,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-26 11:43:51,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 11:43:51,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 11:43:51,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 11:43:51,844 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 305 flow. Second operand 3 states and 304 transitions. [2023-11-26 11:43:51,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 117 transitions, 337 flow [2023-11-26 11:43:51,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:43:51,855 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 301 flow [2023-11-26 11:43:51,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2023-11-26 11:43:51,856 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2023-11-26 11:43:51,857 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 301 flow [2023-11-26 11:43:51,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:43:51,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:51,862 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] [2023-11-26 11:43:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:43:51,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:43:51,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash 351144525, now seen corresponding path program 1 times [2023-11-26 11:43:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:51,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024905832] [2023-11-26 11:43:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,051 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 11:43:52,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024905832] [2023-11-26 11:43:52,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024905832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:52,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:52,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:52,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698139450] [2023-11-26 11:43:52,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:52,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:52,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:52,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 108 [2023-11-26 11:43:52,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 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 11:43:52,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:52,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 108 [2023-11-26 11:43:52,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:52,245 INFO L124 PetriNetUnfolderBase]: 16/289 cut-off events. [2023-11-26 11:43:52,245 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-26 11:43:52,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 289 events. 16/289 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1047 event pairs, 1 based on Foata normal form. 1/277 useless extension candidates. Maximal degree in co-relation 323. Up to 48 conditions per place. [2023-11-26 11:43:52,251 INFO L140 encePairwiseOnDemand]: 101/108 looper letters, 15 selfloop transitions, 2 changer transitions 4/113 dead transitions. [2023-11-26 11:43:52,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 113 transitions, 333 flow [2023-11-26 11:43:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2023-11-26 11:43:52,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8672839506172839 [2023-11-26 11:43:52,255 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2023-11-26 11:43:52,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2023-11-26 11:43:52,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:52,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2023-11-26 11:43:52,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 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 11:43:52,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 11:43:52,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 108.0) internal successors, (756), 7 states have internal predecessors, (756), 0 states have call successors, (0), 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 11:43:52,262 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 301 flow. Second operand 6 states and 562 transitions. [2023-11-26 11:43:52,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 113 transitions, 333 flow [2023-11-26 11:43:52,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 313 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:52,276 INFO L231 Difference]: Finished difference. Result has 122 places, 107 transitions, 275 flow [2023-11-26 11:43:52,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=122, PETRI_TRANSITIONS=107} [2023-11-26 11:43:52,278 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 15 predicate places. [2023-11-26 11:43:52,279 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 107 transitions, 275 flow [2023-11-26 11:43:52,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 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 11:43:52,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:52,280 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] [2023-11-26 11:43:52,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:43:52,281 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:43:52,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1101997642, now seen corresponding path program 1 times [2023-11-26 11:43:52,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143618033] [2023-11-26 11:43:52,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,376 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 11:43:52,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143618033] [2023-11-26 11:43:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143618033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:52,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:52,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:52,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400884827] [2023-11-26 11:43:52,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:52,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:52,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 108 [2023-11-26 11:43:52,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 107 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 11:43:52,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:52,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 108 [2023-11-26 11:43:52,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:52,481 INFO L124 PetriNetUnfolderBase]: 5/207 cut-off events. [2023-11-26 11:43:52,481 INFO L125 PetriNetUnfolderBase]: For 20/33 co-relation queries the response was YES. [2023-11-26 11:43:52,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 207 events. 5/207 cut-off events. For 20/33 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 547 event pairs, 3 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 241. Up to 25 conditions per place. [2023-11-26 11:43:52,483 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 8 selfloop transitions, 4 changer transitions 3/110 dead transitions. [2023-11-26 11:43:52,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 110 transitions, 311 flow [2023-11-26 11:43:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2023-11-26 11:43:52,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9228395061728395 [2023-11-26 11:43:52,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2023-11-26 11:43:52,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2023-11-26 11:43:52,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:52,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2023-11-26 11:43:52,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 11:43:52,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 11:43:52,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 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 11:43:52,491 INFO L175 Difference]: Start difference. First operand has 122 places, 107 transitions, 275 flow. Second operand 3 states and 299 transitions. [2023-11-26 11:43:52,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 110 transitions, 311 flow [2023-11-26 11:43:52,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 297 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-26 11:43:52,500 INFO L231 Difference]: Finished difference. Result has 118 places, 107 transitions, 283 flow [2023-11-26 11:43:52,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=118, PETRI_TRANSITIONS=107} [2023-11-26 11:43:52,503 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2023-11-26 11:43:52,503 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 107 transitions, 283 flow [2023-11-26 11:43:52,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 11:43:52,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:52,505 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:52,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:43:52,506 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:43:52,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1120758050, now seen corresponding path program 1 times [2023-11-26 11:43:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331097867] [2023-11-26 11:43:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:52,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:43:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:52,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:43:52,662 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:43:52,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-11-26 11:43:52,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-26 11:43:52,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-26 11:43:52,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-26 11:43:52,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-26 11:43:52,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-26 11:43:52,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-26 11:43:52,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-26 11:43:52,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:43:52,672 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 11:43:52,677 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:43:52,678 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 11:43:52,708 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:43:52,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 126 transitions, 268 flow [2023-11-26 11:43:52,753 INFO L124 PetriNetUnfolderBase]: 11/278 cut-off events. [2023-11-26 11:43:52,754 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 11:43:52,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 11/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 669 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 161. Up to 8 conditions per place. [2023-11-26 11:43:52,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 126 transitions, 268 flow [2023-11-26 11:43:52,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 126 transitions, 268 flow [2023-11-26 11:43:52,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:52,760 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;@6defe46e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:52,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-26 11:43:52,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:43:52,767 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-26 11:43:52,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:43:52,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:52,767 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] [2023-11-26 11:43:52,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:52,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash -876152835, now seen corresponding path program 1 times [2023-11-26 11:43:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658402907] [2023-11-26 11:43:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,186 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 11:43:53,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658402907] [2023-11-26 11:43:53,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658402907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:53,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789692998] [2023-11-26 11:43:53,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:43:53,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:43:53,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:53,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 126 [2023-11-26 11:43:53,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 126 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 0 states have call successors, (0), 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 11:43:53,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:53,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 126 [2023-11-26 11:43:53,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:53,770 INFO L124 PetriNetUnfolderBase]: 280/1685 cut-off events. [2023-11-26 11:43:53,770 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-26 11:43:53,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1685 events. 280/1685 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13206 event pairs, 240 based on Foata normal form. 24/1578 useless extension candidates. Maximal degree in co-relation 729. Up to 488 conditions per place. [2023-11-26 11:43:53,783 INFO L140 encePairwiseOnDemand]: 107/126 looper letters, 30 selfloop transitions, 13 changer transitions 1/136 dead transitions. [2023-11-26 11:43:53,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 374 flow [2023-11-26 11:43:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2023-11-26 11:43:53,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2023-11-26 11:43:53,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2023-11-26 11:43:53,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2023-11-26 11:43:53,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:53,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2023-11-26 11:43:53,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 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 11:43:53,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:53,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:53,794 INFO L175 Difference]: Start difference. First operand has 126 places, 126 transitions, 268 flow. Second operand 6 states and 609 transitions. [2023-11-26 11:43:53,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 374 flow [2023-11-26 11:43:53,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:53,800 INFO L231 Difference]: Finished difference. Result has 132 places, 131 transitions, 350 flow [2023-11-26 11:43:53,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=132, PETRI_TRANSITIONS=131} [2023-11-26 11:43:53,803 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2023-11-26 11:43:53,803 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 131 transitions, 350 flow [2023-11-26 11:43:53,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.16666666666667) internal successors, (565), 6 states have internal predecessors, (565), 0 states have call successors, (0), 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 11:43:53,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:53,804 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] [2023-11-26 11:43:53,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:43:53,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:53,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1491637782, now seen corresponding path program 1 times [2023-11-26 11:43:53,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925848347] [2023-11-26 11:43:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,858 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 11:43:53,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925848347] [2023-11-26 11:43:53,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925848347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:53,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153399969] [2023-11-26 11:43:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:53,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 126 [2023-11-26 11:43:53,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 131 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 11:43:53,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:53,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 126 [2023-11-26 11:43:53,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,123 INFO L124 PetriNetUnfolderBase]: 120/876 cut-off events. [2023-11-26 11:43:54,124 INFO L125 PetriNetUnfolderBase]: For 100/143 co-relation queries the response was YES. [2023-11-26 11:43:54,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 876 events. 120/876 cut-off events. For 100/143 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5194 event pairs, 50 based on Foata normal form. 0/786 useless extension candidates. Maximal degree in co-relation 1040. Up to 139 conditions per place. [2023-11-26 11:43:54,132 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 16 selfloop transitions, 4 changer transitions 4/138 dead transitions. [2023-11-26 11:43:54,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 138 transitions, 404 flow [2023-11-26 11:43:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-11-26 11:43:54,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2023-11-26 11:43:54,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-11-26 11:43:54,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-11-26 11:43:54,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-11-26 11:43:54,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 11:43:54,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:54,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:54,139 INFO L175 Difference]: Start difference. First operand has 132 places, 131 transitions, 350 flow. Second operand 3 states and 351 transitions. [2023-11-26 11:43:54,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 138 transitions, 404 flow [2023-11-26 11:43:54,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 138 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:43:54,146 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 354 flow [2023-11-26 11:43:54,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2023-11-26 11:43:54,148 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2023-11-26 11:43:54,148 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 354 flow [2023-11-26 11:43:54,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 11:43:54,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,149 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] [2023-11-26 11:43:54,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:43:54,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:54,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2060384267, now seen corresponding path program 1 times [2023-11-26 11:43:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118001901] [2023-11-26 11:43:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,265 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 11:43:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118001901] [2023-11-26 11:43:54,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118001901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576056685] [2023-11-26 11:43:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:54,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:54,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:54,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 126 [2023-11-26 11:43:54,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 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 11:43:54,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 126 [2023-11-26 11:43:54,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,607 INFO L124 PetriNetUnfolderBase]: 185/1303 cut-off events. [2023-11-26 11:43:54,607 INFO L125 PetriNetUnfolderBase]: For 69/70 co-relation queries the response was YES. [2023-11-26 11:43:54,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 1303 events. 185/1303 cut-off events. For 69/70 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 9364 event pairs, 130 based on Foata normal form. 1/1210 useless extension candidates. Maximal degree in co-relation 1271. Up to 311 conditions per place. [2023-11-26 11:43:54,618 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 20 selfloop transitions, 2 changer transitions 4/133 dead transitions. [2023-11-26 11:43:54,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 398 flow [2023-11-26 11:43:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:54,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 651 transitions. [2023-11-26 11:43:54,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2023-11-26 11:43:54,621 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 651 transitions. [2023-11-26 11:43:54,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 651 transitions. [2023-11-26 11:43:54,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 651 transitions. [2023-11-26 11:43:54,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 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 11:43:54,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:54,627 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:54,627 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 354 flow. Second operand 6 states and 651 transitions. [2023-11-26 11:43:54,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 398 flow [2023-11-26 11:43:54,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 376 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:54,633 INFO L231 Difference]: Finished difference. Result has 141 places, 127 transitions, 330 flow [2023-11-26 11:43:54,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=141, PETRI_TRANSITIONS=127} [2023-11-26 11:43:54,634 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 15 predicate places. [2023-11-26 11:43:54,634 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 127 transitions, 330 flow [2023-11-26 11:43:54,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 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 11:43:54,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,635 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] [2023-11-26 11:43:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:43:54,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:54,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1891960348, now seen corresponding path program 1 times [2023-11-26 11:43:54,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592281951] [2023-11-26 11:43:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,692 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 11:43:54,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592281951] [2023-11-26 11:43:54,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592281951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:54,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209259721] [2023-11-26 11:43:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2023-11-26 11:43:54,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 127 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:43:54,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2023-11-26 11:43:54,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,964 INFO L124 PetriNetUnfolderBase]: 172/1212 cut-off events. [2023-11-26 11:43:54,964 INFO L125 PetriNetUnfolderBase]: For 230/471 co-relation queries the response was YES. [2023-11-26 11:43:54,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1212 events. 172/1212 cut-off events. For 230/471 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8777 event pairs, 77 based on Foata normal form. 3/1067 useless extension candidates. Maximal degree in co-relation 1784. Up to 270 conditions per place. [2023-11-26 11:43:54,974 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 19 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2023-11-26 11:43:54,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 136 transitions, 414 flow [2023-11-26 11:43:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-11-26 11:43:54,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2023-11-26 11:43:54,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-11-26 11:43:54,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-11-26 11:43:54,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-11-26 11:43:54,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 11:43:54,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:54,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:54,982 INFO L175 Difference]: Start difference. First operand has 141 places, 127 transitions, 330 flow. Second operand 3 states and 348 transitions. [2023-11-26 11:43:54,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 136 transitions, 414 flow [2023-11-26 11:43:54,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 136 transitions, 402 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-26 11:43:54,987 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 374 flow [2023-11-26 11:43:54,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2023-11-26 11:43:54,988 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 12 predicate places. [2023-11-26 11:43:54,989 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 374 flow [2023-11-26 11:43:54,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:43:54,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,989 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] [2023-11-26 11:43:54,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:43:54,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:54,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash -739667362, now seen corresponding path program 1 times [2023-11-26 11:43:54,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557114245] [2023-11-26 11:43:54,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:43:55,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557114245] [2023-11-26 11:43:55,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557114245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:55,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:55,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82649438] [2023-11-26 11:43:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:43:55,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:43:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:55,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2023-11-26 11:43:55,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 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 11:43:55,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:55,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2023-11-26 11:43:55,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:56,065 INFO L124 PetriNetUnfolderBase]: 303/1623 cut-off events. [2023-11-26 11:43:56,066 INFO L125 PetriNetUnfolderBase]: For 243/261 co-relation queries the response was YES. [2023-11-26 11:43:56,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 1623 events. 303/1623 cut-off events. For 243/261 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12680 event pairs, 130 based on Foata normal form. 2/1498 useless extension candidates. Maximal degree in co-relation 2225. Up to 285 conditions per place. [2023-11-26 11:43:56,080 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 31 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2023-11-26 11:43:56,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 476 flow [2023-11-26 11:43:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 649 transitions. [2023-11-26 11:43:56,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8584656084656085 [2023-11-26 11:43:56,084 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 649 transitions. [2023-11-26 11:43:56,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 649 transitions. [2023-11-26 11:43:56,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:56,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 649 transitions. [2023-11-26 11:43:56,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 11:43:56,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:56,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:43:56,090 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 374 flow. Second operand 6 states and 649 transitions. [2023-11-26 11:43:56,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 476 flow [2023-11-26 11:43:56,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:56,096 INFO L231 Difference]: Finished difference. Result has 140 places, 131 transitions, 368 flow [2023-11-26 11:43:56,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=368, PETRI_PLACES=140, PETRI_TRANSITIONS=131} [2023-11-26 11:43:56,098 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2023-11-26 11:43:56,098 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 131 transitions, 368 flow [2023-11-26 11:43:56,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 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 11:43:56,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:56,099 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:56,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:43:56,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:56,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:56,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1799855078, now seen corresponding path program 1 times [2023-11-26 11:43:56,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:56,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161747945] [2023-11-26 11:43:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:43:56,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:56,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161747945] [2023-11-26 11:43:56,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161747945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:56,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:56,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:56,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169838648] [2023-11-26 11:43:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:56,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:56,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:56,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:56,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2023-11-26 11:43:56,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 131 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 11:43:56,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:56,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2023-11-26 11:43:56,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:56,470 INFO L124 PetriNetUnfolderBase]: 236/1627 cut-off events. [2023-11-26 11:43:56,470 INFO L125 PetriNetUnfolderBase]: For 611/1680 co-relation queries the response was YES. [2023-11-26 11:43:56,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1627 events. 236/1627 cut-off events. For 611/1680 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13344 event pairs, 93 based on Foata normal form. 3/1484 useless extension candidates. Maximal degree in co-relation 2487. Up to 351 conditions per place. [2023-11-26 11:43:56,483 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 19 selfloop transitions, 10 changer transitions 0/140 dead transitions. [2023-11-26 11:43:56,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 463 flow [2023-11-26 11:43:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:56,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:56,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2023-11-26 11:43:56,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.917989417989418 [2023-11-26 11:43:56,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2023-11-26 11:43:56,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2023-11-26 11:43:56,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:56,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2023-11-26 11:43:56,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 11:43:56,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:56,491 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 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 11:43:56,491 INFO L175 Difference]: Start difference. First operand has 140 places, 131 transitions, 368 flow. Second operand 3 states and 347 transitions. [2023-11-26 11:43:56,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 463 flow [2023-11-26 11:43:56,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 453 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:43:56,497 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 440 flow [2023-11-26 11:43:56,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2023-11-26 11:43:56,500 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 13 predicate places. [2023-11-26 11:43:56,500 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 440 flow [2023-11-26 11:43:56,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 11:43:56,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:56,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:56,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:43:56,501 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:56,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:56,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1468378632, now seen corresponding path program 1 times [2023-11-26 11:43:56,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:56,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078431407] [2023-11-26 11:43:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078431407] [2023-11-26 11:43:56,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078431407] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:56,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179645518] [2023-11-26 11:43:56,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:56,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:56,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:43:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:43:56,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:56,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:43:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179645518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:43:57,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:43:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-26 11:43:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668927571] [2023-11-26 11:43:57,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:43:57,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:43:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:57,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:43:57,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:43:57,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2023-11-26 11:43:57,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 104.33333333333333) internal successors, (939), 9 states have internal predecessors, (939), 0 states have call successors, (0), 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 11:43:57,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:57,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2023-11-26 11:43:57,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:57,554 INFO L124 PetriNetUnfolderBase]: 186/1459 cut-off events. [2023-11-26 11:43:57,554 INFO L125 PetriNetUnfolderBase]: For 392/439 co-relation queries the response was YES. [2023-11-26 11:43:57,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2335 conditions, 1459 events. 186/1459 cut-off events. For 392/439 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10744 event pairs, 61 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 1631. Up to 179 conditions per place. [2023-11-26 11:43:57,566 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 25 selfloop transitions, 9 changer transitions 12/157 dead transitions. [2023-11-26 11:43:57,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 157 transitions, 552 flow [2023-11-26 11:43:57,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:43:57,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-26 11:43:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 862 transitions. [2023-11-26 11:43:57,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8551587301587301 [2023-11-26 11:43:57,571 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 862 transitions. [2023-11-26 11:43:57,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 862 transitions. [2023-11-26 11:43:57,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:57,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 862 transitions. [2023-11-26 11:43:57,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 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 11:43:57,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:43:57,579 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 126.0) internal successors, (1134), 9 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:43:57,579 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 440 flow. Second operand 8 states and 862 transitions. [2023-11-26 11:43:57,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 157 transitions, 552 flow [2023-11-26 11:43:57,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 157 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:57,591 INFO L231 Difference]: Finished difference. Result has 147 places, 135 transitions, 431 flow [2023-11-26 11:43:57,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=431, PETRI_PLACES=147, PETRI_TRANSITIONS=135} [2023-11-26 11:43:57,592 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, 21 predicate places. [2023-11-26 11:43:57,592 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 135 transitions, 431 flow [2023-11-26 11:43:57,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.33333333333333) internal successors, (939), 9 states have internal predecessors, (939), 0 states have call successors, (0), 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 11:43:57,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:57,594 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:57,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:57,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:43:57,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-26 11:43:57,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:57,801 INFO L85 PathProgramCache]: Analyzing trace with hash 826716754, now seen corresponding path program 1 times [2023-11-26 11:43:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:57,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252461165] [2023-11-26 11:43:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:57,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:43:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:43:57,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:43:57,896 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:43:57,897 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-26 11:43:57,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-26 11:43:57,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-26 11:43:57,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-26 11:43:57,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-26 11:43:57,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-26 11:43:57,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-26 11:43:57,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-26 11:43:57,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-26 11:43:57,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:43:57,899 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:57,900 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:43:57,900 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 11:43:57,930 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:43:57,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 144 transitions, 315 flow [2023-11-26 11:43:57,996 INFO L124 PetriNetUnfolderBase]: 21/480 cut-off events. [2023-11-26 11:43:57,996 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-26 11:43:57,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 480 events. 21/480 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1445 event pairs, 1 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 286. Up to 16 conditions per place. [2023-11-26 11:43:57,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 144 transitions, 315 flow [2023-11-26 11:43:58,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 315 flow [2023-11-26 11:43:58,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:58,003 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;@6defe46e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:58,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-26 11:43:58,008 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:43:58,008 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-26 11:43:58,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:43:58,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:58,008 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] [2023-11-26 11:43:58,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:43:58,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash 706722813, now seen corresponding path program 1 times [2023-11-26 11:43:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:58,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716882025] [2023-11-26 11:43:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:58,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,313 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 11:43:58,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716882025] [2023-11-26 11:43:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716882025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:58,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383829251] [2023-11-26 11:43:58,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:58,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:43:58,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:43:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:58,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2023-11-26 11:43:58,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 144 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 11:43:58,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:58,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2023-11-26 11:43:58,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:59,885 INFO L124 PetriNetUnfolderBase]: 1609/7784 cut-off events. [2023-11-26 11:43:59,885 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2023-11-26 11:43:59,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10541 conditions, 7784 events. 1609/7784 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 82359 event pairs, 1387 based on Foata normal form. 81/7273 useless extension candidates. Maximal degree in co-relation 3410. Up to 2326 conditions per place. [2023-11-26 11:43:59,953 INFO L140 encePairwiseOnDemand]: 125/144 looper letters, 36 selfloop transitions, 13 changer transitions 1/156 dead transitions. [2023-11-26 11:43:59,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 437 flow [2023-11-26 11:43:59,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 699 transitions. [2023-11-26 11:43:59,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8090277777777778 [2023-11-26 11:43:59,959 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 699 transitions. [2023-11-26 11:43:59,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 699 transitions. [2023-11-26 11:43:59,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:59,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 699 transitions. [2023-11-26 11:43:59,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 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 11:43:59,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:43:59,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:43:59,965 INFO L175 Difference]: Start difference. First operand has 145 places, 144 transitions, 315 flow. Second operand 6 states and 699 transitions. [2023-11-26 11:43:59,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 437 flow [2023-11-26 11:43:59,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 156 transitions, 437 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:59,970 INFO L231 Difference]: Finished difference. Result has 151 places, 149 transitions, 397 flow [2023-11-26 11:43:59,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=151, PETRI_TRANSITIONS=149} [2023-11-26 11:43:59,971 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 6 predicate places. [2023-11-26 11:43:59,971 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 149 transitions, 397 flow [2023-11-26 11:43:59,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 6 states have internal predecessors, (649), 0 states have call successors, (0), 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 11:43:59,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:59,972 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] [2023-11-26 11:43:59,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:43:59,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:43:59,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash -662106090, now seen corresponding path program 1 times [2023-11-26 11:43:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:59,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113547547] [2023-11-26 11:43:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,004 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 11:44:00,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113547547] [2023-11-26 11:44:00,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113547547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:00,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:00,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552662393] [2023-11-26 11:44:00,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:00,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:00,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:00,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 144 [2023-11-26 11:44:00,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 149 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 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 11:44:00,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:00,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 144 [2023-11-26 11:44:00,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:00,883 INFO L124 PetriNetUnfolderBase]: 1072/4666 cut-off events. [2023-11-26 11:44:00,884 INFO L125 PetriNetUnfolderBase]: For 520/868 co-relation queries the response was YES. [2023-11-26 11:44:00,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7002 conditions, 4666 events. 1072/4666 cut-off events. For 520/868 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 43356 event pairs, 542 based on Foata normal form. 0/4183 useless extension candidates. Maximal degree in co-relation 6276. Up to 1110 conditions per place. [2023-11-26 11:44:00,917 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 23 selfloop transitions, 5 changer transitions 4/159 dead transitions. [2023-11-26 11:44:00,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 159 transitions, 473 flow [2023-11-26 11:44:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-11-26 11:44:00,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9212962962962963 [2023-11-26 11:44:00,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-11-26 11:44:00,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-11-26 11:44:00,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:00,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-11-26 11:44:00,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 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 11:44:00,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:00,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:00,924 INFO L175 Difference]: Start difference. First operand has 151 places, 149 transitions, 397 flow. Second operand 3 states and 398 transitions. [2023-11-26 11:44:00,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 159 transitions, 473 flow [2023-11-26 11:44:00,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 159 transitions, 469 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:00,946 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 409 flow [2023-11-26 11:44:00,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2023-11-26 11:44:00,948 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2023-11-26 11:44:00,948 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 409 flow [2023-11-26 11:44:00,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 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 11:44:00,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:00,949 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] [2023-11-26 11:44:00,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:44:00,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:00,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash -281166181, now seen corresponding path program 1 times [2023-11-26 11:44:00,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:00,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550461996] [2023-11-26 11:44:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,036 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 11:44:01,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550461996] [2023-11-26 11:44:01,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550461996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:01,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:01,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:01,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536093010] [2023-11-26 11:44:01,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:01,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:01,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:01,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:01,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2023-11-26 11:44:01,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 409 flow. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 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 11:44:01,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:01,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2023-11-26 11:44:01,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:02,562 INFO L124 PetriNetUnfolderBase]: 1392/6677 cut-off events. [2023-11-26 11:44:02,562 INFO L125 PetriNetUnfolderBase]: For 426/433 co-relation queries the response was YES. [2023-11-26 11:44:02,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9830 conditions, 6677 events. 1392/6677 cut-off events. For 426/433 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 67410 event pairs, 1078 based on Foata normal form. 1/6031 useless extension candidates. Maximal degree in co-relation 6067. Up to 1835 conditions per place. [2023-11-26 11:44:02,616 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 24 selfloop transitions, 2 changer transitions 4/152 dead transitions. [2023-11-26 11:44:02,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 152 transitions, 461 flow [2023-11-26 11:44:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 739 transitions. [2023-11-26 11:44:02,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8553240740740741 [2023-11-26 11:44:02,620 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 739 transitions. [2023-11-26 11:44:02,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 739 transitions. [2023-11-26 11:44:02,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:02,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 739 transitions. [2023-11-26 11:44:02,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 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 11:44:02,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:44:02,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:44:02,626 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 409 flow. Second operand 6 states and 739 transitions. [2023-11-26 11:44:02,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 152 transitions, 461 flow [2023-11-26 11:44:02,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 152 transitions, 437 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:02,640 INFO L231 Difference]: Finished difference. Result has 160 places, 146 transitions, 383 flow [2023-11-26 11:44:02,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=160, PETRI_TRANSITIONS=146} [2023-11-26 11:44:02,642 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 15 predicate places. [2023-11-26 11:44:02,642 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 146 transitions, 383 flow [2023-11-26 11:44:02,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 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 11:44:02,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:02,643 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] [2023-11-26 11:44:02,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:44:02,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1450795388, now seen corresponding path program 1 times [2023-11-26 11:44:02,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272277883] [2023-11-26 11:44:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,709 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 11:44:02,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:02,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272277883] [2023-11-26 11:44:02,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272277883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:02,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:02,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338108554] [2023-11-26 11:44:02,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:02,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:02,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-26 11:44:02,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 146 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 11:44:02,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:02,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-26 11:44:02,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:04,064 INFO L124 PetriNetUnfolderBase]: 1718/7427 cut-off events. [2023-11-26 11:44:04,065 INFO L125 PetriNetUnfolderBase]: For 1601/4150 co-relation queries the response was YES. [2023-11-26 11:44:04,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12028 conditions, 7427 events. 1718/7427 cut-off events. For 1601/4150 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 79319 event pairs, 957 based on Foata normal form. 8/6599 useless extension candidates. Maximal degree in co-relation 11957. Up to 2225 conditions per place. [2023-11-26 11:44:04,152 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 29 selfloop transitions, 9 changer transitions 0/161 dead transitions. [2023-11-26 11:44:04,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 161 transitions, 517 flow [2023-11-26 11:44:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-11-26 11:44:04,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9189814814814815 [2023-11-26 11:44:04,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-11-26 11:44:04,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-11-26 11:44:04,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:04,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-11-26 11:44:04,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 11:44:04,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:04,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:04,161 INFO L175 Difference]: Start difference. First operand has 160 places, 146 transitions, 383 flow. Second operand 3 states and 397 transitions. [2023-11-26 11:44:04,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 161 transitions, 517 flow [2023-11-26 11:44:04,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 161 transitions, 505 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-26 11:44:04,175 INFO L231 Difference]: Finished difference. Result has 157 places, 153 transitions, 447 flow [2023-11-26 11:44:04,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=157, PETRI_TRANSITIONS=153} [2023-11-26 11:44:04,176 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 12 predicate places. [2023-11-26 11:44:04,177 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 153 transitions, 447 flow [2023-11-26 11:44:04,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 11:44:04,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:04,178 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] [2023-11-26 11:44:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:44:04,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:04,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 691520110, now seen corresponding path program 1 times [2023-11-26 11:44:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128594118] [2023-11-26 11:44:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:04,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:04,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128594118] [2023-11-26 11:44:04,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128594118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:04,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:04,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:04,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139562593] [2023-11-26 11:44:04,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:04,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:04,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:04,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:04,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2023-11-26 11:44:04,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 153 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:44:04,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:04,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2023-11-26 11:44:04,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:06,713 INFO L124 PetriNetUnfolderBase]: 2579/9442 cut-off events. [2023-11-26 11:44:06,714 INFO L125 PetriNetUnfolderBase]: For 1408/1642 co-relation queries the response was YES. [2023-11-26 11:44:06,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15939 conditions, 9442 events. 2579/9442 cut-off events. For 1408/1642 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 100651 event pairs, 1141 based on Foata normal form. 11/8474 useless extension candidates. Maximal degree in co-relation 13424. Up to 1863 conditions per place. [2023-11-26 11:44:06,799 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 43 selfloop transitions, 5 changer transitions 0/176 dead transitions. [2023-11-26 11:44:06,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 176 transitions, 589 flow [2023-11-26 11:44:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-11-26 11:44:06,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8622685185185185 [2023-11-26 11:44:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-11-26 11:44:06,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-11-26 11:44:06,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:06,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-11-26 11:44:06,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 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 11:44:06,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:44:06,818 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 0 states have call successors, (0), 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 11:44:06,818 INFO L175 Difference]: Start difference. First operand has 157 places, 153 transitions, 447 flow. Second operand 6 states and 745 transitions. [2023-11-26 11:44:06,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 176 transitions, 589 flow [2023-11-26 11:44:06,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 176 transitions, 571 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:06,835 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 437 flow [2023-11-26 11:44:06,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2023-11-26 11:44:06,837 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2023-11-26 11:44:06,837 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 437 flow [2023-11-26 11:44:06,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:44:06,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:06,838 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:44:06,839 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:06,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1404697062, now seen corresponding path program 1 times [2023-11-26 11:44:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122051485] [2023-11-26 11:44:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:44:06,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:06,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122051485] [2023-11-26 11:44:06,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122051485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:06,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:06,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:06,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214013128] [2023-11-26 11:44:06,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:06,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:06,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-26 11:44:06,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 11:44:06,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:06,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-26 11:44:06,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:08,962 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([453] L1038-->L1038-1: Formula: (= |v_#race~data~0_4| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][133], [Black: 159#true, 33#L1023-6true, 190#true, 3#L1023-6true, threadThread1of3ForFork0InUse, 119#L1038-1true, Black: 167#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of3ForFork0InUse, 183#true, threadThread3of3ForFork0NotInUse, Black: 179#(= |#race~data~0| |threadThread1of3ForFork0_#t~nondet5|), Black: 148#true, Black: 151#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 152#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 150#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)]) [2023-11-26 11:44:08,963 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-26 11:44:08,963 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:44:08,963 INFO L297 olderBase$Statistics]: existing Event has 142 ancestors and is cut-off event [2023-11-26 11:44:08,963 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-26 11:44:09,154 INFO L124 PetriNetUnfolderBase]: 2769/10937 cut-off events. [2023-11-26 11:44:09,154 INFO L125 PetriNetUnfolderBase]: For 5289/11689 co-relation queries the response was YES. [2023-11-26 11:44:09,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20367 conditions, 10937 events. 2769/10937 cut-off events. For 5289/11689 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 125598 event pairs, 1240 based on Foata normal form. 11/9718 useless extension candidates. Maximal degree in co-relation 17853. Up to 3354 conditions per place. [2023-11-26 11:44:09,271 INFO L140 encePairwiseOnDemand]: 137/144 looper letters, 31 selfloop transitions, 14 changer transitions 0/169 dead transitions. [2023-11-26 11:44:09,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 169 transitions, 606 flow [2023-11-26 11:44:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-11-26 11:44:09,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-26 11:44:09,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-11-26 11:44:09,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-11-26 11:44:09,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:09,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-11-26 11:44:09,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 11:44:09,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:09,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:09,281 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 437 flow. Second operand 3 states and 396 transitions. [2023-11-26 11:44:09,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 169 transitions, 606 flow [2023-11-26 11:44:09,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 169 transitions, 596 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:09,319 INFO L231 Difference]: Finished difference. Result has 158 places, 162 transitions, 557 flow [2023-11-26 11:44:09,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=158, PETRI_TRANSITIONS=162} [2023-11-26 11:44:09,320 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 13 predicate places. [2023-11-26 11:44:09,320 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 162 transitions, 557 flow [2023-11-26 11:44:09,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 11:44:09,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:09,321 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] [2023-11-26 11:44:09,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:44:09,322 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:09,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1679496552, now seen corresponding path program 1 times [2023-11-26 11:44:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037401323] [2023-11-26 11:44:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:09,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037401323] [2023-11-26 11:44:09,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037401323] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:09,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011643697] [2023-11-26 11:44:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:09,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:09,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:09,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:09,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:44:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:44:09,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:09,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:09,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011643697] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:09,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:09,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-26 11:44:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304922536] [2023-11-26 11:44:09,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:09,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:44:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:09,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:44:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:44:10,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 144 [2023-11-26 11:44:10,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 162 transitions, 557 flow. Second operand has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 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 11:44:10,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:10,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 144 [2023-11-26 11:44:10,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:11,931 INFO L124 PetriNetUnfolderBase]: 2028/10252 cut-off events. [2023-11-26 11:44:11,931 INFO L125 PetriNetUnfolderBase]: For 3361/3852 co-relation queries the response was YES. [2023-11-26 11:44:11,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17145 conditions, 10252 events. 2028/10252 cut-off events. For 3361/3852 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 115782 event pairs, 702 based on Foata normal form. 5/9494 useless extension candidates. Maximal degree in co-relation 12275. Up to 1342 conditions per place. [2023-11-26 11:44:12,013 INFO L140 encePairwiseOnDemand]: 134/144 looper letters, 48 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2023-11-26 11:44:12,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 193 transitions, 736 flow [2023-11-26 11:44:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:44:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-26 11:44:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 987 transitions. [2023-11-26 11:44:12,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8567708333333334 [2023-11-26 11:44:12,018 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 987 transitions. [2023-11-26 11:44:12,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 987 transitions. [2023-11-26 11:44:12,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:12,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 987 transitions. [2023-11-26 11:44:12,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 123.375) internal successors, (987), 8 states have internal predecessors, (987), 0 states have call successors, (0), 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 11:44:12,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 144.0) internal successors, (1296), 9 states have internal predecessors, (1296), 0 states have call successors, (0), 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 11:44:12,028 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 144.0) internal successors, (1296), 9 states have internal predecessors, (1296), 0 states have call successors, (0), 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 11:44:12,029 INFO L175 Difference]: Start difference. First operand has 158 places, 162 transitions, 557 flow. Second operand 8 states and 987 transitions. [2023-11-26 11:44:12,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 193 transitions, 736 flow [2023-11-26 11:44:12,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 193 transitions, 710 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:12,051 INFO L231 Difference]: Finished difference. Result has 166 places, 164 transitions, 565 flow [2023-11-26 11:44:12,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=565, PETRI_PLACES=166, PETRI_TRANSITIONS=164} [2023-11-26 11:44:12,052 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 21 predicate places. [2023-11-26 11:44:12,052 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 164 transitions, 565 flow [2023-11-26 11:44:12,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 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 11:44:12,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:12,053 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:12,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:44:12,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_633f2f23-d2a7-4bc8-9bc6-5a954fb11456/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:12,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:12,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash 191513338, now seen corresponding path program 1 times [2023-11-26 11:44:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117886973] [2023-11-26 11:44:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:12,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:12,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117886973] [2023-11-26 11:44:12,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117886973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:12,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:12,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:12,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867219789] [2023-11-26 11:44:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:12,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:12,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 144 [2023-11-26 11:44:12,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 164 transitions, 565 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 11:44:12,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:12,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 144 [2023-11-26 11:44:12,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:12,696 INFO L124 PetriNetUnfolderBase]: 117/1870 cut-off events. [2023-11-26 11:44:12,696 INFO L125 PetriNetUnfolderBase]: For 622/801 co-relation queries the response was YES. [2023-11-26 11:44:12,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3071 conditions, 1870 events. 117/1870 cut-off events. For 622/801 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 15570 event pairs, 43 based on Foata normal form. 24/1814 useless extension candidates. Maximal degree in co-relation 2427. Up to 144 conditions per place. [2023-11-26 11:44:12,705 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 12 selfloop transitions, 6 changer transitions 0/159 dead transitions. [2023-11-26 11:44:12,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 159 transitions, 552 flow [2023-11-26 11:44:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-11-26 11:44:12,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9375 [2023-11-26 11:44:12,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-11-26 11:44:12,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-11-26 11:44:12,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:12,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-11-26 11:44:12,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 11:44:12,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:12,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:12,714 INFO L175 Difference]: Start difference. First operand has 166 places, 164 transitions, 565 flow. Second operand 3 states and 405 transitions. [2023-11-26 11:44:12,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 159 transitions, 552 flow [2023-11-26 11:44:12,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 159 transitions, 542 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-26 11:44:12,725 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 487 flow [2023-11-26 11:44:12,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2023-11-26 11:44:12,726 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 20 predicate places. [2023-11-26 11:44:12,726 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 487 flow [2023-11-26 11:44:12,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 11:44:12,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:12,727 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:12,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:44:12,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:12,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1812935107, now seen corresponding path program 1 times [2023-11-26 11:44:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678996437] [2023-11-26 11:44:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-26 11:44:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678996437] [2023-11-26 11:44:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678996437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:12,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:12,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:12,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007051948] [2023-11-26 11:44:12,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:12,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:12,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:12,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:12,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:12,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2023-11-26 11:44:12,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 11:44:12,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:12,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2023-11-26 11:44:12,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:13,394 INFO L124 PetriNetUnfolderBase]: 203/2177 cut-off events. [2023-11-26 11:44:13,395 INFO L125 PetriNetUnfolderBase]: For 1399/1861 co-relation queries the response was YES. [2023-11-26 11:44:13,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3967 conditions, 2177 events. 203/2177 cut-off events. For 1399/1861 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 19460 event pairs, 134 based on Foata normal form. 4/2041 useless extension candidates. Maximal degree in co-relation 3265. Up to 435 conditions per place. [2023-11-26 11:44:13,408 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 25 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2023-11-26 11:44:13,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 159 transitions, 569 flow [2023-11-26 11:44:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-11-26 11:44:13,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9004629629629629 [2023-11-26 11:44:13,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-11-26 11:44:13,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-11-26 11:44:13,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:13,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-11-26 11:44:13,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 11:44:13,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:13,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 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 11:44:13,418 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 487 flow. Second operand 3 states and 389 transitions. [2023-11-26 11:44:13,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 159 transitions, 569 flow [2023-11-26 11:44:13,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 159 transitions, 563 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:13,430 INFO L231 Difference]: Finished difference. Result has 168 places, 157 transitions, 521 flow [2023-11-26 11:44:13,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=168, PETRI_TRANSITIONS=157} [2023-11-26 11:44:13,431 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 23 predicate places. [2023-11-26 11:44:13,432 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 521 flow [2023-11-26 11:44:13,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 11:44:13,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:13,433 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 11:44:13,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:44:13,433 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-26 11:44:13,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1768600753, now seen corresponding path program 1 times [2023-11-26 11:44:13,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972557234] [2023-11-26 11:44:13,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:44:13,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:44:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:44:13,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:44:13,529 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:44:13,530 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2023-11-26 11:44:13,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-11-26 11:44:13,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-11-26 11:44:13,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-11-26 11:44:13,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-11-26 11:44:13,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-11-26 11:44:13,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-11-26 11:44:13,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-11-26 11:44:13,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-11-26 11:44:13,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-11-26 11:44:13,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:44:13,532 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,533 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:44:13,534 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-26 11:44:13,566 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 11:44:13,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 162 transitions, 364 flow [2023-11-26 11:44:13,762 INFO L124 PetriNetUnfolderBase]: 43/850 cut-off events. [2023-11-26 11:44:13,762 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 11:44:13,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 850 events. 43/850 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3416 event pairs, 6 based on Foata normal form. 0/734 useless extension candidates. Maximal degree in co-relation 500. Up to 32 conditions per place. [2023-11-26 11:44:13,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 162 transitions, 364 flow [2023-11-26 11:44:13,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 162 transitions, 364 flow [2023-11-26 11:44:13,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:13,774 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;@6defe46e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:13,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-26 11:44:13,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:13,781 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-26 11:44:13,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:13,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:13,782 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] [2023-11-26 11:44:13,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-26 11:44:13,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1807509379, now seen corresponding path program 1 times [2023-11-26 11:44:13,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039797049] [2023-11-26 11:44:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,091 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 11:44:14,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039797049] [2023-11-26 11:44:14,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039797049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:14,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:14,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:14,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155356558] [2023-11-26 11:44:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:14,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 162 [2023-11-26 11:44:14,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 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 11:44:14,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:14,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 162 [2023-11-26 11:44:14,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:19,360 INFO L124 PetriNetUnfolderBase]: 8218/33014 cut-off events. [2023-11-26 11:44:19,360 INFO L125 PetriNetUnfolderBase]: For 1120/1120 co-relation queries the response was YES. [2023-11-26 11:44:19,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45649 conditions, 33014 events. 8218/33014 cut-off events. For 1120/1120 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 425131 event pairs, 7076 based on Foata normal form. 312/30786 useless extension candidates. Maximal degree in co-relation 14886. Up to 10644 conditions per place. [2023-11-26 11:44:19,627 INFO L140 encePairwiseOnDemand]: 143/162 looper letters, 42 selfloop transitions, 13 changer transitions 1/176 dead transitions. [2023-11-26 11:44:19,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 176 transitions, 502 flow [2023-11-26 11:44:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:19,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-11-26 11:44:19,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2023-11-26 11:44:19,633 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-11-26 11:44:19,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-11-26 11:44:19,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:19,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-11-26 11:44:19,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 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 11:44:19,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:44:19,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:44:19,642 INFO L175 Difference]: Start difference. First operand has 164 places, 162 transitions, 364 flow. Second operand 6 states and 789 transitions. [2023-11-26 11:44:19,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 176 transitions, 502 flow [2023-11-26 11:44:19,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 176 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:19,654 INFO L231 Difference]: Finished difference. Result has 170 places, 167 transitions, 446 flow [2023-11-26 11:44:19,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=170, PETRI_TRANSITIONS=167} [2023-11-26 11:44:19,658 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 6 predicate places. [2023-11-26 11:44:19,658 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 167 transitions, 446 flow [2023-11-26 11:44:19,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 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 11:44:19,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:19,659 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] [2023-11-26 11:44:19,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 11:44:19,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-26 11:44:19,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1209899350, now seen corresponding path program 1 times [2023-11-26 11:44:19,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:19,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28014976] [2023-11-26 11:44:19,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,707 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 11:44:19,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:19,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28014976] [2023-11-26 11:44:19,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28014976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:19,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:19,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358144249] [2023-11-26 11:44:19,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:19,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:19,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2023-11-26 11:44:19,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 167 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 11:44:19,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:19,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2023-11-26 11:44:19,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:24,372 INFO L124 PetriNetUnfolderBase]: 7860/26678 cut-off events. [2023-11-26 11:44:24,372 INFO L125 PetriNetUnfolderBase]: For 3149/5343 co-relation queries the response was YES. [2023-11-26 11:44:24,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40953 conditions, 26678 events. 7860/26678 cut-off events. For 3149/5343 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 321423 event pairs, 4292 based on Foata normal form. 0/24271 useless extension candidates. Maximal degree in co-relation 37726. Up to 7653 conditions per place. [2023-11-26 11:44:24,596 INFO L140 encePairwiseOnDemand]: 155/162 looper letters, 30 selfloop transitions, 6 changer transitions 4/180 dead transitions. [2023-11-26 11:44:24,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 180 transitions, 544 flow [2023-11-26 11:44:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2023-11-26 11:44:24,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9156378600823045 [2023-11-26 11:44:24,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2023-11-26 11:44:24,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2023-11-26 11:44:24,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:24,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2023-11-26 11:44:24,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 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 11:44:24,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 11:44:24,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 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 11:44:24,606 INFO L175 Difference]: Start difference. First operand has 170 places, 167 transitions, 446 flow. Second operand 3 states and 445 transitions. [2023-11-26 11:44:24,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 180 transitions, 544 flow [2023-11-26 11:44:24,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 180 transitions, 540 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:24,812 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 466 flow [2023-11-26 11:44:24,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2023-11-26 11:44:24,812 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 8 predicate places. [2023-11-26 11:44:24,813 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 466 flow [2023-11-26 11:44:24,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 11:44:24,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:24,813 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] [2023-11-26 11:44:24,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:44:24,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-26 11:44:24,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1916427773, now seen corresponding path program 1 times [2023-11-26 11:44:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:24,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508275710] [2023-11-26 11:44:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:24,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,916 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 11:44:24,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508275710] [2023-11-26 11:44:24,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508275710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:24,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:24,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:24,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106919327] [2023-11-26 11:44:24,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:24,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:24,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:24,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:24,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:24,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2023-11-26 11:44:24,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 466 flow. Second operand has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 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 11:44:24,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:24,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2023-11-26 11:44:24,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:30,819 INFO L124 PetriNetUnfolderBase]: 8759/34260 cut-off events. [2023-11-26 11:44:30,819 INFO L125 PetriNetUnfolderBase]: For 2360/2360 co-relation queries the response was YES. [2023-11-26 11:44:31,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51610 conditions, 34260 events. 8759/34260 cut-off events. For 2360/2360 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 439000 event pairs, 5733 based on Foata normal form. 1/29895 useless extension candidates. Maximal degree in co-relation 29068. Up to 9813 conditions per place. [2023-11-26 11:44:31,184 INFO L140 encePairwiseOnDemand]: 155/162 looper letters, 28 selfloop transitions, 2 changer transitions 4/171 dead transitions. [2023-11-26 11:44:31,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 526 flow [2023-11-26 11:44:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:31,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 827 transitions. [2023-11-26 11:44:31,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8508230452674898 [2023-11-26 11:44:31,189 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 827 transitions. [2023-11-26 11:44:31,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 827 transitions. [2023-11-26 11:44:31,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:31,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 827 transitions. [2023-11-26 11:44:31,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 0 states have call successors, (0), 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 11:44:31,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:44:31,198 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 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 11:44:31,198 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 466 flow. Second operand 6 states and 827 transitions. [2023-11-26 11:44:31,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 526 flow [2023-11-26 11:44:31,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 171 transitions, 500 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:31,359 INFO L231 Difference]: Finished difference. Result has 179 places, 165 transitions, 438 flow [2023-11-26 11:44:31,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=179, PETRI_TRANSITIONS=165} [2023-11-26 11:44:31,360 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, 15 predicate places. [2023-11-26 11:44:31,360 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 165 transitions, 438 flow [2023-11-26 11:44:31,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 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 11:44:31,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:31,361 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] [2023-11-26 11:44:31,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 11:44:31,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-26 11:44:31,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 745533254, now seen corresponding path program 1 times [2023-11-26 11:44:31,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:31,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402149050] [2023-11-26 11:44:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:31,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:31,417 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 11:44:31,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:31,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402149050] [2023-11-26 11:44:31,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402149050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:31,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:31,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509710440] [2023-11-26 11:44:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:31,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:31,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:31,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:31,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 162 [2023-11-26 11:44:31,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 165 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 11:44:31,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:31,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 162 [2023-11-26 11:44:31,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand