./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC --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 edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:48:43,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:48:43,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 01:48:43,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:48:43,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:48:43,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:48:43,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:48:43,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:48:43,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:48:43,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:48:43,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:48:43,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:48:43,201 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:48:43,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:48:43,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:48:43,201 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:48:43,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:48:43,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:48:43,202 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:48:43,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:48:43,203 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:48:43,203 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:48:43,203 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:48:43,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:43,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:43,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:43,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:48:43,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:43,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:43,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:43,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:48:43,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:48:43,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:48:43,206 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC 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 -> edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 [2024-11-24 01:48:43,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:48:43,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:48:43,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:48:43,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:48:43,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:48:43,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-11-24 01:48:46,552 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/data/9fb55d5cb/4826c01c73c84a1baf74cfbeda4b6b03/FLAG3e875821f [2024-11-24 01:48:46,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:48:46,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-11-24 01:48:46,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/data/9fb55d5cb/4826c01c73c84a1baf74cfbeda4b6b03/FLAG3e875821f [2024-11-24 01:48:47,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/data/9fb55d5cb/4826c01c73c84a1baf74cfbeda4b6b03 [2024-11-24 01:48:47,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:48:47,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:48:47,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:47,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:48:47,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:48:47,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:47,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136bc45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47, skipping insertion in model container [2024-11-24 01:48:47,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:47,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:48:47,740 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,741 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,742 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,743 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:47,819 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:48:47,894 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,894 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,895 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,896 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 01:48:47,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:47,993 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:48:47,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47 WrapperNode [2024-11-24 01:48:47,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:47,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:47,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:48:47,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:48:48,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,111 INFO L138 Inliner]: procedures = 274, calls = 101, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 330 [2024-11-24 01:48:48,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:48,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:48:48,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:48:48,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:48:48,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:48:48,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:48:48,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:48:48,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:48:48,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (1/1) ... [2024-11-24 01:48:48,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:48,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:48,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:48:48,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:48:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-24 01:48:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-24 01:48:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:48:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-24 01:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:48:48,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:48:48,301 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:48:48,528 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:48:48,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:48:49,451 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:48:49,451 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:48:49,484 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:48:49,488 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:48:49,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:49 BoogieIcfgContainer [2024-11-24 01:48:49,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:48:49,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:48:49,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:48:49,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:48:49,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:48:47" (1/3) ... [2024-11-24 01:48:49,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453dac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:49, skipping insertion in model container [2024-11-24 01:48:49,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:47" (2/3) ... [2024-11-24 01:48:49,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453dac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:49, skipping insertion in model container [2024-11-24 01:48:49,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:49" (3/3) ... [2024-11-24 01:48:49,502 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_23-evilcollapse_rc.i [2024-11-24 01:48:49,522 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:48:49,525 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_23-evilcollapse_rc.i that has 2 procedures, 372 locations, 1 initial locations, 4 loop locations, and 18 error locations. [2024-11-24 01:48:49,525 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:48:49,685 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:48:49,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 453 transitions, 914 flow [2024-11-24 01:48:50,000 INFO L124 PetriNetUnfolderBase]: 16/451 cut-off events. [2024-11-24 01:48:50,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:50,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 451 events. 16/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 649 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 376. Up to 2 conditions per place. [2024-11-24 01:48:50,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 453 transitions, 914 flow [2024-11-24 01:48:50,034 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 451 transitions, 908 flow [2024-11-24 01:48:50,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:48:50,063 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54627eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:48:50,063 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-24 01:48:50,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:48:50,108 INFO L124 PetriNetUnfolderBase]: 1/103 cut-off events. [2024-11-24 01:48:50,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:50,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:50,109 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:50,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:50,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:50,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1040335099, now seen corresponding path program 1 times [2024-11-24 01:48:50,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966716113] [2024-11-24 01:48:50,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:50,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966716113] [2024-11-24 01:48:51,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966716113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:51,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:51,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:51,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502680622] [2024-11-24 01:48:51,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:51,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:51,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:51,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:51,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:52,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 453 [2024-11-24 01:48:52,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 451 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:52,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:52,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 453 [2024-11-24 01:48:52,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:53,435 INFO L124 PetriNetUnfolderBase]: 449/1917 cut-off events. [2024-11-24 01:48:53,435 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-24 01:48:53,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 1917 events. 449/1917 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10872 event pairs, 342 based on Foata normal form. 154/1858 useless extension candidates. Maximal degree in co-relation 2472. Up to 862 conditions per place. [2024-11-24 01:48:53,454 INFO L140 encePairwiseOnDemand]: 431/453 looper letters, 88 selfloop transitions, 10 changer transitions 2/439 dead transitions. [2024-11-24 01:48:53,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 439 transitions, 1080 flow [2024-11-24 01:48:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2168 transitions. [2024-11-24 01:48:53,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.797645327446652 [2024-11-24 01:48:53,478 INFO L175 Difference]: Start difference. First operand has 442 places, 451 transitions, 908 flow. Second operand 6 states and 2168 transitions. [2024-11-24 01:48:53,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 439 transitions, 1080 flow [2024-11-24 01:48:53,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 439 transitions, 1078 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:48:53,505 INFO L231 Difference]: Finished difference. Result has 443 places, 437 transitions, 898 flow [2024-11-24 01:48:53,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=443, PETRI_TRANSITIONS=437} [2024-11-24 01:48:53,514 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 1 predicate places. [2024-11-24 01:48:53,515 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 437 transitions, 898 flow [2024-11-24 01:48:53,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:53,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:53,519 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:53,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:48:53,520 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:53,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash -732826809, now seen corresponding path program 1 times [2024-11-24 01:48:53,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:53,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868308406] [2024-11-24 01:48:53,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:53,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:54,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868308406] [2024-11-24 01:48:54,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868308406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:54,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:54,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311059436] [2024-11-24 01:48:54,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:54,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:54,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:54,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:54,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:55,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 453 [2024-11-24 01:48:55,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 437 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:55,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 453 [2024-11-24 01:48:55,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:55,503 INFO L124 PetriNetUnfolderBase]: 449/1913 cut-off events. [2024-11-24 01:48:55,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:55,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 1913 events. 449/1913 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10991 event pairs, 342 based on Foata normal form. 0/1704 useless extension candidates. Maximal degree in co-relation 2663. Up to 862 conditions per place. [2024-11-24 01:48:55,518 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 88 selfloop transitions, 10 changer transitions 0/435 dead transitions. [2024-11-24 01:48:55,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 435 transitions, 1090 flow [2024-11-24 01:48:55,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2158 transitions. [2024-11-24 01:48:55,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7939661515820456 [2024-11-24 01:48:55,526 INFO L175 Difference]: Start difference. First operand has 443 places, 437 transitions, 898 flow. Second operand 6 states and 2158 transitions. [2024-11-24 01:48:55,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 435 transitions, 1090 flow [2024-11-24 01:48:55,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 435 transitions, 1070 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:48:55,539 INFO L231 Difference]: Finished difference. Result has 439 places, 435 transitions, 894 flow [2024-11-24 01:48:55,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=894, PETRI_PLACES=439, PETRI_TRANSITIONS=435} [2024-11-24 01:48:55,541 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -3 predicate places. [2024-11-24 01:48:55,541 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 435 transitions, 894 flow [2024-11-24 01:48:55,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,542 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:55,542 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:55,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:48:55,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:55,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:55,545 INFO L85 PathProgramCache]: Analyzing trace with hash 882028107, now seen corresponding path program 1 times [2024-11-24 01:48:55,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:55,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122663494] [2024-11-24 01:48:55,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:55,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:55,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:55,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122663494] [2024-11-24 01:48:55,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122663494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:55,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:55,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:55,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926035982] [2024-11-24 01:48:55,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:55,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:55,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:55,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:55,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:55,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 453 [2024-11-24 01:48:55,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 435 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:55,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 453 [2024-11-24 01:48:55,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:55,889 INFO L124 PetriNetUnfolderBase]: 29/737 cut-off events. [2024-11-24 01:48:55,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:55,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 737 events. 29/737 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2132 event pairs, 18 based on Foata normal form. 1/682 useless extension candidates. Maximal degree in co-relation 510. Up to 45 conditions per place. [2024-11-24 01:48:55,894 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 11 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-11-24 01:48:55,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 436 transitions, 922 flow [2024-11-24 01:48:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:48:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1307 transitions. [2024-11-24 01:48:55,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617365710080942 [2024-11-24 01:48:55,899 INFO L175 Difference]: Start difference. First operand has 439 places, 435 transitions, 894 flow. Second operand 3 states and 1307 transitions. [2024-11-24 01:48:55,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 436 transitions, 922 flow [2024-11-24 01:48:55,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 436 transitions, 902 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:48:55,911 INFO L231 Difference]: Finished difference. Result has 437 places, 436 transitions, 886 flow [2024-11-24 01:48:55,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=437, PETRI_TRANSITIONS=436} [2024-11-24 01:48:55,913 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-11-24 01:48:55,913 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 436 transitions, 886 flow [2024-11-24 01:48:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:55,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:55,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:48:55,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:55,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1555551636, now seen corresponding path program 1 times [2024-11-24 01:48:55,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:55,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301149604] [2024-11-24 01:48:55,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:55,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:56,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:56,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301149604] [2024-11-24 01:48:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301149604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:56,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:56,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:56,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720059802] [2024-11-24 01:48:56,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:56,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:56,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:56,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:48:57,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 453 [2024-11-24 01:48:57,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 436 transitions, 886 flow. Second operand has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:57,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:57,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 453 [2024-11-24 01:48:57,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:57,985 INFO L124 PetriNetUnfolderBase]: 450/2035 cut-off events. [2024-11-24 01:48:57,985 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 01:48:57,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 2035 events. 450/2035 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11305 event pairs, 342 based on Foata normal form. 0/1822 useless extension candidates. Maximal degree in co-relation 2746. Up to 910 conditions per place. [2024-11-24 01:48:58,000 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 95 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2024-11-24 01:48:58,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 435 transitions, 1084 flow [2024-11-24 01:48:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:58,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:48:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2024-11-24 01:48:58,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7921265636497424 [2024-11-24 01:48:58,007 INFO L175 Difference]: Start difference. First operand has 437 places, 436 transitions, 886 flow. Second operand 6 states and 2153 transitions. [2024-11-24 01:48:58,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 435 transitions, 1084 flow [2024-11-24 01:48:58,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 435 transitions, 1082 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:48:58,016 INFO L231 Difference]: Finished difference. Result has 440 places, 435 transitions, 892 flow [2024-11-24 01:48:58,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=440, PETRI_TRANSITIONS=435} [2024-11-24 01:48:58,018 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2024-11-24 01:48:58,018 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 435 transitions, 892 flow [2024-11-24 01:48:58,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:58,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:58,019 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:58,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:48:58,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:58,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1578755745, now seen corresponding path program 1 times [2024-11-24 01:48:58,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:58,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946012582] [2024-11-24 01:48:58,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:58,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:58,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946012582] [2024-11-24 01:48:58,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946012582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:58,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:58,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:58,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845771138] [2024-11-24 01:48:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:58,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:58,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:58,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:58,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:58,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 453 [2024-11-24 01:48:58,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 435 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:58,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:48:58,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 453 [2024-11-24 01:48:58,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:48:58,347 INFO L124 PetriNetUnfolderBase]: 29/923 cut-off events. [2024-11-24 01:48:58,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:48:58,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 923 events. 29/923 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2423 event pairs, 18 based on Foata normal form. 2/863 useless extension candidates. Maximal degree in co-relation 588. Up to 49 conditions per place. [2024-11-24 01:48:58,352 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 11 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-11-24 01:48:58,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 436 transitions, 920 flow [2024-11-24 01:48:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:58,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:48:58,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1307 transitions. [2024-11-24 01:48:58,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617365710080942 [2024-11-24 01:48:58,357 INFO L175 Difference]: Start difference. First operand has 440 places, 435 transitions, 892 flow. Second operand 3 states and 1307 transitions. [2024-11-24 01:48:58,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 436 transitions, 920 flow [2024-11-24 01:48:58,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 436 transitions, 910 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:48:58,365 INFO L231 Difference]: Finished difference. Result has 438 places, 436 transitions, 894 flow [2024-11-24 01:48:58,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=438, PETRI_TRANSITIONS=436} [2024-11-24 01:48:58,367 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -4 predicate places. [2024-11-24 01:48:58,367 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 436 transitions, 894 flow [2024-11-24 01:48:58,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:58,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:48:58,368 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:58,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:48:58,369 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:48:58,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:58,370 INFO L85 PathProgramCache]: Analyzing trace with hash 85943675, now seen corresponding path program 1 times [2024-11-24 01:48:58,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:58,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703593795] [2024-11-24 01:48:58,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:58,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:59,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:59,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703593795] [2024-11-24 01:48:59,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703593795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:59,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:59,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:48:59,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646528078] [2024-11-24 01:48:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:59,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:59,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:59,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:59,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:00,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2024-11-24 01:49:00,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 436 transitions, 894 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:00,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:00,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2024-11-24 01:49:00,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:00,714 INFO L124 PetriNetUnfolderBase]: 75/1235 cut-off events. [2024-11-24 01:49:00,714 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 01:49:00,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1235 events. 75/1235 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4472 event pairs, 42 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1032. Up to 267 conditions per place. [2024-11-24 01:49:00,721 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 58 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2024-11-24 01:49:00,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 435 transitions, 1018 flow [2024-11-24 01:49:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2338 transitions. [2024-11-24 01:49:00,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601913171449596 [2024-11-24 01:49:00,728 INFO L175 Difference]: Start difference. First operand has 438 places, 436 transitions, 894 flow. Second operand 6 states and 2338 transitions. [2024-11-24 01:49:00,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 435 transitions, 1018 flow [2024-11-24 01:49:00,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 435 transitions, 1016 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:49:00,737 INFO L231 Difference]: Finished difference. Result has 441 places, 435 transitions, 900 flow [2024-11-24 01:49:00,737 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=900, PETRI_PLACES=441, PETRI_TRANSITIONS=435} [2024-11-24 01:49:00,738 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -1 predicate places. [2024-11-24 01:49:00,738 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 435 transitions, 900 flow [2024-11-24 01:49:00,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:00,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:00,740 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:00,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:49:00,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:00,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:00,741 INFO L85 PathProgramCache]: Analyzing trace with hash -821979176, now seen corresponding path program 1 times [2024-11-24 01:49:00,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:00,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569176781] [2024-11-24 01:49:00,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:00,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:49:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:01,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569176781] [2024-11-24 01:49:01,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569176781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:01,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:01,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:01,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123254266] [2024-11-24 01:49:01,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:01,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:01,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:01,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:01,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:02,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 453 [2024-11-24 01:49:02,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 435 transitions, 900 flow. Second operand has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:02,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:02,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 453 [2024-11-24 01:49:02,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:02,898 INFO L124 PetriNetUnfolderBase]: 450/2215 cut-off events. [2024-11-24 01:49:02,898 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:49:02,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 2215 events. 450/2215 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12009 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2789. Up to 976 conditions per place. [2024-11-24 01:49:02,912 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 95 selfloop transitions, 5 changer transitions 0/434 dead transitions. [2024-11-24 01:49:02,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 434 transitions, 1098 flow [2024-11-24 01:49:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2024-11-24 01:49:02,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7921265636497424 [2024-11-24 01:49:02,919 INFO L175 Difference]: Start difference. First operand has 441 places, 435 transitions, 900 flow. Second operand 6 states and 2153 transitions. [2024-11-24 01:49:02,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 434 transitions, 1098 flow [2024-11-24 01:49:02,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 434 transitions, 1088 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:02,928 INFO L231 Difference]: Finished difference. Result has 440 places, 434 transitions, 898 flow [2024-11-24 01:49:02,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2024-11-24 01:49:02,930 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2024-11-24 01:49:02,930 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 898 flow [2024-11-24 01:49:02,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:02,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:02,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:02,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:49:02,934 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:02,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 755759462, now seen corresponding path program 1 times [2024-11-24 01:49:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066864652] [2024-11-24 01:49:02,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:49:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066864652] [2024-11-24 01:49:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066864652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:03,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:03,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422059686] [2024-11-24 01:49:03,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:03,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:03,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:03,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:03,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:04,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 453 [2024-11-24 01:49:04,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:04,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:04,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 453 [2024-11-24 01:49:04,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:05,014 INFO L124 PetriNetUnfolderBase]: 450/2211 cut-off events. [2024-11-24 01:49:05,014 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:49:05,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3267 conditions, 2211 events. 450/2211 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11985 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2805. Up to 960 conditions per place. [2024-11-24 01:49:05,029 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 91 selfloop transitions, 5 changer transitions 0/433 dead transitions. [2024-11-24 01:49:05,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 433 transitions, 1088 flow [2024-11-24 01:49:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2173 transitions. [2024-11-24 01:49:05,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7994849153789552 [2024-11-24 01:49:05,041 INFO L175 Difference]: Start difference. First operand has 440 places, 434 transitions, 898 flow. Second operand 6 states and 2173 transitions. [2024-11-24 01:49:05,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 433 transitions, 1088 flow [2024-11-24 01:49:05,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 433 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:05,049 INFO L231 Difference]: Finished difference. Result has 439 places, 433 transitions, 896 flow [2024-11-24 01:49:05,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=439, PETRI_TRANSITIONS=433} [2024-11-24 01:49:05,051 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -3 predicate places. [2024-11-24 01:49:05,054 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 433 transitions, 896 flow [2024-11-24 01:49:05,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:05,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:05,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:05,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:49:05,056 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:05,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1877296969, now seen corresponding path program 1 times [2024-11-24 01:49:05,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:05,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523783079] [2024-11-24 01:49:05,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:49:05,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:05,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523783079] [2024-11-24 01:49:05,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523783079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:05,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:05,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:05,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301425845] [2024-11-24 01:49:05,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:05,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:05,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:05,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:05,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:06,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 453 [2024-11-24 01:49:06,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 433 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:06,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:06,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 453 [2024-11-24 01:49:06,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:06,910 INFO L124 PetriNetUnfolderBase]: 450/2207 cut-off events. [2024-11-24 01:49:06,911 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:49:06,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 2207 events. 450/2207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11964 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2820. Up to 960 conditions per place. [2024-11-24 01:49:06,928 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 91 selfloop transitions, 5 changer transitions 0/432 dead transitions. [2024-11-24 01:49:06,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 432 transitions, 1086 flow [2024-11-24 01:49:06,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:06,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2173 transitions. [2024-11-24 01:49:06,933 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7994849153789552 [2024-11-24 01:49:06,933 INFO L175 Difference]: Start difference. First operand has 439 places, 433 transitions, 896 flow. Second operand 6 states and 2173 transitions. [2024-11-24 01:49:06,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 432 transitions, 1086 flow [2024-11-24 01:49:06,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 432 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:06,942 INFO L231 Difference]: Finished difference. Result has 438 places, 432 transitions, 894 flow [2024-11-24 01:49:06,943 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=894, PETRI_PLACES=438, PETRI_TRANSITIONS=432} [2024-11-24 01:49:06,945 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -4 predicate places. [2024-11-24 01:49:06,945 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 432 transitions, 894 flow [2024-11-24 01:49:06,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:06,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:06,947 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:06,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:49:06,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:06,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:06,948 INFO L85 PathProgramCache]: Analyzing trace with hash -302959804, now seen corresponding path program 1 times [2024-11-24 01:49:06,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:06,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854213185] [2024-11-24 01:49:06,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:06,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 01:49:07,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:07,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854213185] [2024-11-24 01:49:07,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854213185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:07,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:07,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580410804] [2024-11-24 01:49:07,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:07,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:07,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:07,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:07,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:08,648 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 453 [2024-11-24 01:49:08,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 432 transitions, 894 flow. Second operand has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:08,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:08,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 453 [2024-11-24 01:49:08,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:09,146 INFO L124 PetriNetUnfolderBase]: 450/2203 cut-off events. [2024-11-24 01:49:09,146 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 01:49:09,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3279 conditions, 2203 events. 450/2203 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11940 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2833. Up to 980 conditions per place. [2024-11-24 01:49:09,160 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 96 selfloop transitions, 5 changer transitions 0/431 dead transitions. [2024-11-24 01:49:09,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 431 transitions, 1094 flow [2024-11-24 01:49:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2148 transitions. [2024-11-24 01:49:09,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7902869757174393 [2024-11-24 01:49:09,166 INFO L175 Difference]: Start difference. First operand has 438 places, 432 transitions, 894 flow. Second operand 6 states and 2148 transitions. [2024-11-24 01:49:09,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 431 transitions, 1094 flow [2024-11-24 01:49:09,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 431 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:09,177 INFO L231 Difference]: Finished difference. Result has 437 places, 431 transitions, 892 flow [2024-11-24 01:49:09,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=437, PETRI_TRANSITIONS=431} [2024-11-24 01:49:09,179 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-11-24 01:49:09,180 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 431 transitions, 892 flow [2024-11-24 01:49:09,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:09,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:09,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:09,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:49:09,182 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:09,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:09,184 INFO L85 PathProgramCache]: Analyzing trace with hash -945853365, now seen corresponding path program 1 times [2024-11-24 01:49:09,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:09,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630678056] [2024-11-24 01:49:09,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:09,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:49:09,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:09,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630678056] [2024-11-24 01:49:09,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630678056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:09,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398079882] [2024-11-24 01:49:09,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:09,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:09,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:09,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:49:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:09,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:49:09,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:49:10,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:49:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398079882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:49:10,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:49:10,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-24 01:49:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105428793] [2024-11-24 01:49:10,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:49:10,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:49:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:10,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:49:10,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:49:10,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-11-24 01:49:10,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 431 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 429.8) internal successors, (4298), 10 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:10,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:10,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-11-24 01:49:10,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:10,700 INFO L124 PetriNetUnfolderBase]: 29/1087 cut-off events. [2024-11-24 01:49:10,700 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 01:49:10,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1087 events. 29/1087 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1989 event pairs, 18 based on Foata normal form. 4/1049 useless extension candidates. Maximal degree in co-relation 581. Up to 49 conditions per place. [2024-11-24 01:49:10,704 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 15 selfloop transitions, 9 changer transitions 0/439 dead transitions. [2024-11-24 01:49:10,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 439 transitions, 958 flow [2024-11-24 01:49:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:49:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:49:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3878 transitions. [2024-11-24 01:49:10,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9511896001962227 [2024-11-24 01:49:10,713 INFO L175 Difference]: Start difference. First operand has 437 places, 431 transitions, 892 flow. Second operand 9 states and 3878 transitions. [2024-11-24 01:49:10,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 439 transitions, 958 flow [2024-11-24 01:49:10,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 439 transitions, 948 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:10,721 INFO L231 Difference]: Finished difference. Result has 443 places, 437 transitions, 932 flow [2024-11-24 01:49:10,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=932, PETRI_PLACES=443, PETRI_TRANSITIONS=437} [2024-11-24 01:49:10,722 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 1 predicate places. [2024-11-24 01:49:10,722 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 437 transitions, 932 flow [2024-11-24 01:49:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 429.8) internal successors, (4298), 10 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:10,724 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:10,725 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:10,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:49:10,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:49:10,926 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:10,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1173256925, now seen corresponding path program 2 times [2024-11-24 01:49:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:10,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727156027] [2024-11-24 01:49:10,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:49:10,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:11,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:49:11,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-24 01:49:11,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:11,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727156027] [2024-11-24 01:49:11,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727156027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:11,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:11,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:11,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71134984] [2024-11-24 01:49:11,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:11,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:11,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:11,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:13,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2024-11-24 01:49:13,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 437 transitions, 932 flow. Second operand has 6 states, 6 states have (on average 377.3333333333333) internal successors, (2264), 6 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:13,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:13,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2024-11-24 01:49:13,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:13,554 INFO L124 PetriNetUnfolderBase]: 75/1401 cut-off events. [2024-11-24 01:49:13,554 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-24 01:49:13,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 1401 events. 75/1401 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4006 event pairs, 42 based on Foata normal form. 0/1318 useless extension candidates. Maximal degree in co-relation 1161. Up to 314 conditions per place. [2024-11-24 01:49:13,561 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 61 selfloop transitions, 10 changer transitions 0/435 dead transitions. [2024-11-24 01:49:13,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 435 transitions, 1070 flow [2024-11-24 01:49:13,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2293 transitions. [2024-11-24 01:49:13,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8436350257542311 [2024-11-24 01:49:13,567 INFO L175 Difference]: Start difference. First operand has 443 places, 437 transitions, 932 flow. Second operand 6 states and 2293 transitions. [2024-11-24 01:49:13,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 435 transitions, 1070 flow [2024-11-24 01:49:13,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 435 transitions, 1064 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-24 01:49:13,577 INFO L231 Difference]: Finished difference. Result has 445 places, 435 transitions, 942 flow [2024-11-24 01:49:13,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=445, PETRI_TRANSITIONS=435} [2024-11-24 01:49:13,580 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 3 predicate places. [2024-11-24 01:49:13,581 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 435 transitions, 942 flow [2024-11-24 01:49:13,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.3333333333333) internal successors, (2264), 6 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:13,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:13,583 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:13,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:49:13,583 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:13,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:13,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1574659909, now seen corresponding path program 1 times [2024-11-24 01:49:13,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:13,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463790763] [2024-11-24 01:49:13,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-24 01:49:14,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463790763] [2024-11-24 01:49:14,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463790763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707553952] [2024-11-24 01:49:14,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:14,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:14,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:14,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:14,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:49:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:14,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:49:14,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-24 01:49:15,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-24 01:49:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707553952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:49:15,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:49:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-24 01:49:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626822807] [2024-11-24 01:49:15,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:49:15,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:49:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:15,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:49:15,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:49:15,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 453 [2024-11-24 01:49:16,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 435 transitions, 942 flow. Second operand has 19 states, 19 states have (on average 424.5263157894737) internal successors, (8066), 19 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:16,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:16,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 453 [2024-11-24 01:49:16,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:18,160 INFO L124 PetriNetUnfolderBase]: 30/2465 cut-off events. [2024-11-24 01:49:18,161 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-24 01:49:18,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2465 events. 30/2465 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1968 event pairs, 18 based on Foata normal form. 13/2438 useless extension candidates. Maximal degree in co-relation 2329. Up to 51 conditions per place. [2024-11-24 01:49:18,166 INFO L140 encePairwiseOnDemand]: 442/453 looper letters, 47 selfloop transitions, 68 changer transitions 0/521 dead transitions. [2024-11-24 01:49:18,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 521 transitions, 1582 flow [2024-11-24 01:49:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-24 01:49:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-24 01:49:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 26714 transitions. [2024-11-24 01:49:18,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.936052419496128 [2024-11-24 01:49:18,197 INFO L175 Difference]: Start difference. First operand has 445 places, 435 transitions, 942 flow. Second operand 63 states and 26714 transitions. [2024-11-24 01:49:18,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 521 transitions, 1582 flow [2024-11-24 01:49:18,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 521 transitions, 1562 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:18,208 INFO L231 Difference]: Finished difference. Result has 518 places, 497 transitions, 1442 flow [2024-11-24 01:49:18,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1442, PETRI_PLACES=518, PETRI_TRANSITIONS=497} [2024-11-24 01:49:18,209 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 76 predicate places. [2024-11-24 01:49:18,209 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 497 transitions, 1442 flow [2024-11-24 01:49:18,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 424.5263157894737) internal successors, (8066), 19 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:18,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:18,213 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:18,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:49:18,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 01:49:18,417 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:18,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1713339501, now seen corresponding path program 2 times [2024-11-24 01:49:18,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:18,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338072805] [2024-11-24 01:49:18,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:49:18,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:18,725 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:49:18,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12365 trivial. 0 not checked. [2024-11-24 01:49:19,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:19,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338072805] [2024-11-24 01:49:19,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338072805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:19,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:19,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:19,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433898072] [2024-11-24 01:49:19,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:19,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:19,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:19,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:19,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:19,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2024-11-24 01:49:19,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 497 transitions, 1442 flow. Second operand has 6 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:19,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:19,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2024-11-24 01:49:19,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:21,347 INFO L124 PetriNetUnfolderBase]: 188/3246 cut-off events. [2024-11-24 01:49:21,347 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-11-24 01:49:21,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4504 conditions, 3246 events. 188/3246 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7999 event pairs, 126 based on Foata normal form. 0/3087 useless extension candidates. Maximal degree in co-relation 2458. Up to 899 conditions per place. [2024-11-24 01:49:21,360 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 58 selfloop transitions, 5 changer transitions 0/496 dead transitions. [2024-11-24 01:49:21,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 496 transitions, 1566 flow [2024-11-24 01:49:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:21,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2338 transitions. [2024-11-24 01:49:21,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601913171449596 [2024-11-24 01:49:21,365 INFO L175 Difference]: Start difference. First operand has 518 places, 497 transitions, 1442 flow. Second operand 6 states and 2338 transitions. [2024-11-24 01:49:21,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 496 transitions, 1566 flow [2024-11-24 01:49:21,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 496 transitions, 1490 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-24 01:49:21,382 INFO L231 Difference]: Finished difference. Result has 515 places, 496 transitions, 1374 flow [2024-11-24 01:49:21,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1374, PETRI_PLACES=515, PETRI_TRANSITIONS=496} [2024-11-24 01:49:21,383 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 73 predicate places. [2024-11-24 01:49:21,383 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 496 transitions, 1374 flow [2024-11-24 01:49:21,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:21,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:21,385 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:21,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:49:21,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:21,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1773093017, now seen corresponding path program 1 times [2024-11-24 01:49:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:21,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957536643] [2024-11-24 01:49:21,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-24 01:49:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:25,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957536643] [2024-11-24 01:49:25,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957536643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:25,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821563292] [2024-11-24 01:49:25,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:25,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:25,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:25,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:25,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:49:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:27,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 5753 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:49:27,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-24 01:49:27,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:49:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-11-24 01:49:29,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821563292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:49:29,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:49:29,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-24 01:49:29,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33191439] [2024-11-24 01:49:29,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:49:29,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 01:49:29,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:29,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 01:49:29,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:49:29,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-11-24 01:49:29,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 496 transitions, 1374 flow. Second operand has 34 states, 34 states have (on average 430.11764705882354) internal successors, (14624), 34 states have internal predecessors, (14624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:29,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:29,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-11-24 01:49:29,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:33,507 INFO L124 PetriNetUnfolderBase]: 30/4624 cut-off events. [2024-11-24 01:49:33,507 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-11-24 01:49:33,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5435 conditions, 4624 events. 30/4624 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1965 event pairs, 18 based on Foata normal form. 24/4609 useless extension candidates. Maximal degree in co-relation 5016. Up to 78 conditions per place. [2024-11-24 01:49:33,517 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 47 selfloop transitions, 135 changer transitions 0/597 dead transitions. [2024-11-24 01:49:33,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 597 transitions, 2502 flow [2024-11-24 01:49:33,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-24 01:49:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-24 01:49:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 19340 transitions. [2024-11-24 01:49:33,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9487368162864852 [2024-11-24 01:49:33,534 INFO L175 Difference]: Start difference. First operand has 515 places, 496 transitions, 1374 flow. Second operand 45 states and 19340 transitions. [2024-11-24 01:49:33,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 597 transitions, 2502 flow [2024-11-24 01:49:33,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 597 transitions, 2492 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:49:33,552 INFO L231 Difference]: Finished difference. Result has 563 places, 571 transitions, 2238 flow [2024-11-24 01:49:33,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2238, PETRI_PLACES=563, PETRI_TRANSITIONS=571} [2024-11-24 01:49:33,554 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 121 predicate places. [2024-11-24 01:49:33,554 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 571 transitions, 2238 flow [2024-11-24 01:49:33,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 430.11764705882354) internal successors, (14624), 34 states have internal predecessors, (14624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:33,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:33,560 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:33,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:49:33,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:49:33,761 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:33,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash 258921319, now seen corresponding path program 2 times [2024-11-24 01:49:33,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:33,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719239745] [2024-11-24 01:49:33,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:49:33,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:34,422 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:49:34,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:49:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58141 trivial. 0 not checked. [2024-11-24 01:49:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:34,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719239745] [2024-11-24 01:49:34,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719239745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:34,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:34,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432270437] [2024-11-24 01:49:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:34,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:34,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:34,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:34,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:35,546 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 453 [2024-11-24 01:49:35,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 571 transitions, 2238 flow. Second operand has 6 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:35,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:35,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 453 [2024-11-24 01:49:35,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:44,878 INFO L124 PetriNetUnfolderBase]: 1238/7754 cut-off events. [2024-11-24 01:49:44,878 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-11-24 01:49:44,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 7754 events. 1238/7754 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 28189 event pairs, 1026 based on Foata normal form. 0/7369 useless extension candidates. Maximal degree in co-relation 7662. Up to 3430 conditions per place. [2024-11-24 01:49:44,911 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 96 selfloop transitions, 5 changer transitions 0/570 dead transitions. [2024-11-24 01:49:44,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 570 transitions, 2438 flow [2024-11-24 01:49:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:49:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:49:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2148 transitions. [2024-11-24 01:49:44,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7902869757174393 [2024-11-24 01:49:44,917 INFO L175 Difference]: Start difference. First operand has 563 places, 571 transitions, 2238 flow. Second operand 6 states and 2148 transitions. [2024-11-24 01:49:44,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 570 transitions, 2438 flow [2024-11-24 01:49:44,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 570 transitions, 2330 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-24 01:49:44,954 INFO L231 Difference]: Finished difference. Result has 549 places, 570 transitions, 2138 flow [2024-11-24 01:49:44,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2138, PETRI_PLACES=549, PETRI_TRANSITIONS=570} [2024-11-24 01:49:44,956 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 107 predicate places. [2024-11-24 01:49:44,957 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 570 transitions, 2138 flow [2024-11-24 01:49:44,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:49:44,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:44,959 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:44,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:49:44,960 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:49:44,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:44,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1369528204, now seen corresponding path program 1 times [2024-11-24 01:49:44,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:44,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491635376] [2024-11-24 01:49:44,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:44,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-11-24 01:50:02,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491635376] [2024-11-24 01:50:02,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491635376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:50:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295720910] [2024-11-24 01:50:02,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:02,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:50:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:50:02,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:50:02,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:50:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:06,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 11716 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 01:50:06,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-11-24 01:50:08,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:50:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-11-24 01:50:11,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295720910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:50:11,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:50:11,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-24 01:50:11,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962375530] [2024-11-24 01:50:11,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:50:11,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-24 01:50:11,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:11,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-24 01:50:11,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-24 01:50:11,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-11-24 01:50:11,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 570 transitions, 2138 flow. Second operand has 63 states, 63 states have (on average 430.12698412698415) internal successors, (27098), 63 states have internal predecessors, (27098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:50:11,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:50:11,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-11-24 01:50:11,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:50:24,106 INFO L124 PetriNetUnfolderBase]: 30/8673 cut-off events. [2024-11-24 01:50:24,106 INFO L125 PetriNetUnfolderBase]: For 13371/13371 co-relation queries the response was YES. [2024-11-24 01:50:24,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10603 conditions, 8673 events. 30/8673 cut-off events. For 13371/13371 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1965 event pairs, 18 based on Foata normal form. 45/8680 useless extension candidates. Maximal degree in co-relation 10183. Up to 168 conditions per place. [2024-11-24 01:50:24,125 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 92 selfloop transitions, 270 changer transitions 0/776 dead transitions. [2024-11-24 01:50:24,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 776 transitions, 5048 flow [2024-11-24 01:50:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-24 01:50:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-11-24 01:50:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 38667 transitions. [2024-11-24 01:50:24,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9484179543782193 [2024-11-24 01:50:24,158 INFO L175 Difference]: Start difference. First operand has 549 places, 570 transitions, 2138 flow. Second operand 90 states and 38667 transitions. [2024-11-24 01:50:24,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 776 transitions, 5048 flow [2024-11-24 01:50:24,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 776 transitions, 5038 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 01:50:24,202 INFO L231 Difference]: Finished difference. Result has 649 places, 708 transitions, 4120 flow [2024-11-24 01:50:24,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4120, PETRI_PLACES=649, PETRI_TRANSITIONS=708} [2024-11-24 01:50:24,205 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 207 predicate places. [2024-11-24 01:50:24,205 INFO L471 AbstractCegarLoop]: Abstraction has has 649 places, 708 transitions, 4120 flow [2024-11-24 01:50:24,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 430.12698412698415) internal successors, (27098), 63 states have internal predecessors, (27098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:50:24,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:50:24,214 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:24,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:50:24,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56a0a05-b04e-4905-8cec-c41a53f6cbf7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:50:24,415 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-24 01:50:24,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash 762555380, now seen corresponding path program 2 times [2024-11-24 01:50:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:24,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504966008] [2024-11-24 01:50:24,432 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:50:24,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:25,362 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:50:25,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:50:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 235892 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235892 trivial. 0 not checked. [2024-11-24 01:50:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:25,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504966008] [2024-11-24 01:50:25,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504966008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:25,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:25,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:25,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802079136] [2024-11-24 01:50:25,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:25,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:50:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:25,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:50:25,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:50:27,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 453 [2024-11-24 01:50:27,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 708 transitions, 4120 flow. Second operand has 6 states, 6 states have (on average 388.1666666666667) internal successors, (2329), 6 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:50:27,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:50:27,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 453 [2024-11-24 01:50:27,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand