./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya --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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:26:28,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:26:28,975 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 03:26:28,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:26:28,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:26:29,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:26:29,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:26:29,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:26:29,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:26:29,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:26:29,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:26:29,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:26:29,007 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:26:29,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:26:29,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:26:29,008 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:26:29,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:26:29,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:26:29,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:26:29,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:26:29,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:26:29,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:26:29,012 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 03:26:29,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:26:29,013 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:26:29,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:26:29,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:26:29,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:26:29,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:26:29,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:26:29,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:26:29,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:26:29,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:26:29,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:26:29,017 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:26:29,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:26:29,017 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:26:29,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:26:29,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:26:29,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:26:29,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:26:29,019 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2023-11-29 03:26:29,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:26:29,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:26:29,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:26:29,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:26:29,264 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:26:29,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-29 03:26:32,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:26:32,275 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:26:32,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-29 03:26:32,292 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/data/1cd3fe947/bddfe38a0e044cfb9c510cac0c8ce448/FLAG7cd4b435e [2023-11-29 03:26:32,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/data/1cd3fe947/bddfe38a0e044cfb9c510cac0c8ce448 [2023-11-29 03:26:32,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:26:32,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:26:32,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:26:32,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:26:32,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:26:32,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:32,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dced75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32, skipping insertion in model container [2023-11-29 03:26:32,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:32,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:26:32,781 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,782 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,783 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,784 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:26:32,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:26:32,875 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,876 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,877 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,878 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 03:26:32,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:26:32,948 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:26:32,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32 WrapperNode [2023-11-29 03:26:32,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:26:32,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:26:32,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:26:32,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:26:32,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:32,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,021 INFO L138 Inliner]: procedures = 280, calls = 56, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 368 [2023-11-29 03:26:33,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:26:33,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:26:33,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:26:33,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:26:33,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:26:33,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:26:33,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:26:33,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:26:33,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (1/1) ... [2023-11-29 03:26:33,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:26:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:33,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:26:33,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:26:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:26:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 03:26:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:26:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 03:26:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:26:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:26:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 03:26:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:26:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:26:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 03:26:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 03:26:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 03:26:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 03:26:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:26:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:26:33,176 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:26:33,339 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:26:33,341 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:26:33,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:26:33,894 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:26:33,894 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 03:26:33,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:26:33 BoogieIcfgContainer [2023-11-29 03:26:33,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:26:33,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:26:33,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:26:33,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:26:33,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:26:32" (1/3) ... [2023-11-29 03:26:33,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615ce06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:26:33, skipping insertion in model container [2023-11-29 03:26:33,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:26:32" (2/3) ... [2023-11-29 03:26:33,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615ce06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:26:33, skipping insertion in model container [2023-11-29 03:26:33,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:26:33" (3/3) ... [2023-11-29 03:26:33,905 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-11-29 03:26:33,914 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:26:33,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:26:33,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-29 03:26:33,925 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:26:34,031 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 03:26:34,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 386 places, 411 transitions, 829 flow [2023-11-29 03:26:34,211 INFO L124 PetriNetUnfolderBase]: 30/436 cut-off events. [2023-11-29 03:26:34,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:26:34,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 436 events. 30/436 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1136 event pairs, 0 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 254. Up to 4 conditions per place. [2023-11-29 03:26:34,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 411 transitions, 829 flow [2023-11-29 03:26:34,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 386 places, 411 transitions, 829 flow [2023-11-29 03:26:34,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:26:34,245 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5834702b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:26:34,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 03:26:34,254 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:26:34,255 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2023-11-29 03:26:34,255 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:26:34,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:34,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:34,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:34,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash 227961698, now seen corresponding path program 1 times [2023-11-29 03:26:34,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:34,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081628976] [2023-11-29 03:26:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:34,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:34,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081628976] [2023-11-29 03:26:34,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081628976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:34,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:34,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:34,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751111312] [2023-11-29 03:26:34,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:34,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:34,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:35,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 411 [2023-11-29 03:26:35,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 411 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:35,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:35,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 411 [2023-11-29 03:26:35,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:35,877 INFO L124 PetriNetUnfolderBase]: 164/1001 cut-off events. [2023-11-29 03:26:35,877 INFO L125 PetriNetUnfolderBase]: For 7/11 co-relation queries the response was YES. [2023-11-29 03:26:35,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 1001 events. 164/1001 cut-off events. For 7/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5177 event pairs, 144 based on Foata normal form. 140/1058 useless extension candidates. Maximal degree in co-relation 1079. Up to 382 conditions per place. [2023-11-29 03:26:35,888 INFO L140 encePairwiseOnDemand]: 378/411 looper letters, 84 selfloop transitions, 10 changer transitions 2/385 dead transitions. [2023-11-29 03:26:35,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 385 transitions, 965 flow [2023-11-29 03:26:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:35,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2023-11-29 03:26:35,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7603406326034063 [2023-11-29 03:26:35,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2023-11-29 03:26:35,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2023-11-29 03:26:35,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:35,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2023-11-29 03:26:35,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:35,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:35,943 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:35,945 INFO L175 Difference]: Start difference. First operand has 386 places, 411 transitions, 829 flow. Second operand 6 states and 1875 transitions. [2023-11-29 03:26:35,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 385 transitions, 965 flow [2023-11-29 03:26:35,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 385 transitions, 965 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:26:35,962 INFO L231 Difference]: Finished difference. Result has 386 places, 383 transitions, 793 flow [2023-11-29 03:26:35,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=793, PETRI_PLACES=386, PETRI_TRANSITIONS=383} [2023-11-29 03:26:35,968 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 0 predicate places. [2023-11-29 03:26:35,969 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 383 transitions, 793 flow [2023-11-29 03:26:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:35,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:35,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:35,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:26:35,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:35,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 534408324, now seen corresponding path program 1 times [2023-11-29 03:26:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:35,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561656593] [2023-11-29 03:26:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:36,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:36,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561656593] [2023-11-29 03:26:36,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561656593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:36,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:36,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210012720] [2023-11-29 03:26:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:36,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:37,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 411 [2023-11-29 03:26:37,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 383 transitions, 793 flow. Second operand has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:37,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 411 [2023-11-29 03:26:37,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:37,190 INFO L124 PetriNetUnfolderBase]: 164/997 cut-off events. [2023-11-29 03:26:37,190 INFO L125 PetriNetUnfolderBase]: For 7/11 co-relation queries the response was YES. [2023-11-29 03:26:37,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 997 events. 164/997 cut-off events. For 7/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5153 event pairs, 144 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1230. Up to 382 conditions per place. [2023-11-29 03:26:37,196 INFO L140 encePairwiseOnDemand]: 399/411 looper letters, 84 selfloop transitions, 10 changer transitions 0/381 dead transitions. [2023-11-29 03:26:37,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 381 transitions, 977 flow [2023-11-29 03:26:37,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:37,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1854 transitions. [2023-11-29 03:26:37,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7518248175182481 [2023-11-29 03:26:37,204 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1854 transitions. [2023-11-29 03:26:37,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1854 transitions. [2023-11-29 03:26:37,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:37,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1854 transitions. [2023-11-29 03:26:37,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 309.0) internal successors, (1854), 6 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,216 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,217 INFO L175 Difference]: Start difference. First operand has 386 places, 383 transitions, 793 flow. Second operand 6 states and 1854 transitions. [2023-11-29 03:26:37,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 381 transitions, 977 flow [2023-11-29 03:26:37,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 381 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:37,224 INFO L231 Difference]: Finished difference. Result has 382 places, 381 transitions, 789 flow [2023-11-29 03:26:37,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=382, PETRI_TRANSITIONS=381} [2023-11-29 03:26:37,226 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -4 predicate places. [2023-11-29 03:26:37,226 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 381 transitions, 789 flow [2023-11-29 03:26:37,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:37,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:37,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:26:37,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:37,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:37,229 INFO L85 PathProgramCache]: Analyzing trace with hash 306365905, now seen corresponding path program 1 times [2023-11-29 03:26:37,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:37,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342575029] [2023-11-29 03:26:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:37,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342575029] [2023-11-29 03:26:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342575029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:37,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:37,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:26:37,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841093792] [2023-11-29 03:26:37,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:37,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:26:37,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:26:37,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:26:37,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2023-11-29 03:26:37,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 381 transitions, 789 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:37,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2023-11-29 03:26:37,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:37,388 INFO L124 PetriNetUnfolderBase]: 16/553 cut-off events. [2023-11-29 03:26:37,389 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 03:26:37,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 553 events. 16/553 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1874 event pairs, 8 based on Foata normal form. 1/514 useless extension candidates. Maximal degree in co-relation 394. Up to 34 conditions per place. [2023-11-29 03:26:37,391 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 15 selfloop transitions, 2 changer transitions 0/382 dead transitions. [2023-11-29 03:26:37,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 382 transitions, 825 flow [2023-11-29 03:26:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:26:37,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:26:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-11-29 03:26:37,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9221411192214112 [2023-11-29 03:26:37,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-11-29 03:26:37,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-11-29 03:26:37,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:37,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-11-29 03:26:37,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,403 INFO L175 Difference]: Start difference. First operand has 382 places, 381 transitions, 789 flow. Second operand 3 states and 1137 transitions. [2023-11-29 03:26:37,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 382 transitions, 825 flow [2023-11-29 03:26:37,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 382 transitions, 805 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:37,410 INFO L231 Difference]: Finished difference. Result has 380 places, 382 transitions, 781 flow [2023-11-29 03:26:37,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=781, PETRI_PLACES=380, PETRI_TRANSITIONS=382} [2023-11-29 03:26:37,411 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -6 predicate places. [2023-11-29 03:26:37,411 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 382 transitions, 781 flow [2023-11-29 03:26:37,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:37,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:37,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:37,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:26:37,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:37,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1148528668, now seen corresponding path program 1 times [2023-11-29 03:26:37,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:37,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904917940] [2023-11-29 03:26:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:37,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:37,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462262995] [2023-11-29 03:26:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:37,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:37,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:37,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:26:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:37,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:26:37,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:37,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:26:37,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 03:26:37,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:37,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 03:26:37,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:37,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 03:26:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:37,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:37,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:37,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904917940] [2023-11-29 03:26:37,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:37,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462262995] [2023-11-29 03:26:37,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462262995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:37,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:37,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:26:37,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360649645] [2023-11-29 03:26:37,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:37,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:26:37,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:37,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:26:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:26:38,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 411 [2023-11-29 03:26:38,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 382 transitions, 781 flow. Second operand has 8 states, 8 states have (on average 292.25) internal successors, (2338), 8 states have internal predecessors, (2338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:38,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 411 [2023-11-29 03:26:38,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:38,620 INFO L124 PetriNetUnfolderBase]: 165/1120 cut-off events. [2023-11-29 03:26:38,620 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-29 03:26:38,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 1120 events. 165/1120 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5773 event pairs, 144 based on Foata normal form. 0/1037 useless extension candidates. Maximal degree in co-relation 1370. Up to 408 conditions per place. [2023-11-29 03:26:38,627 INFO L140 encePairwiseOnDemand]: 401/411 looper letters, 89 selfloop transitions, 9 changer transitions 0/381 dead transitions. [2023-11-29 03:26:38,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 381 transitions, 975 flow [2023-11-29 03:26:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:26:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:26:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2709 transitions. [2023-11-29 03:26:38,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.732360097323601 [2023-11-29 03:26:38,636 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2709 transitions. [2023-11-29 03:26:38,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2709 transitions. [2023-11-29 03:26:38,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:38,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2709 transitions. [2023-11-29 03:26:38,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 301.0) internal successors, (2709), 9 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,659 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,659 INFO L175 Difference]: Start difference. First operand has 380 places, 382 transitions, 781 flow. Second operand 9 states and 2709 transitions. [2023-11-29 03:26:38,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 381 transitions, 975 flow [2023-11-29 03:26:38,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 381 transitions, 973 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:26:38,669 INFO L231 Difference]: Finished difference. Result has 386 places, 381 transitions, 795 flow [2023-11-29 03:26:38,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=795, PETRI_PLACES=386, PETRI_TRANSITIONS=381} [2023-11-29 03:26:38,671 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 0 predicate places. [2023-11-29 03:26:38,671 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 381 transitions, 795 flow [2023-11-29 03:26:38,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 292.25) internal successors, (2338), 8 states have internal predecessors, (2338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:38,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:38,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:26:38,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:38,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:38,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 265265628, now seen corresponding path program 1 times [2023-11-29 03:26:38,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633365983] [2023-11-29 03:26:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633365983] [2023-11-29 03:26:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633365983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:38,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:38,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:26:38,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53703261] [2023-11-29 03:26:38,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:38,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:26:38,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:26:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:26:38,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2023-11-29 03:26:38,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 381 transitions, 795 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:38,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:38,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2023-11-29 03:26:38,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:39,092 INFO L124 PetriNetUnfolderBase]: 16/741 cut-off events. [2023-11-29 03:26:39,093 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 03:26:39,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 741 events. 16/741 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1878 event pairs, 8 based on Foata normal form. 2/697 useless extension candidates. Maximal degree in co-relation 607. Up to 38 conditions per place. [2023-11-29 03:26:39,095 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 15 selfloop transitions, 2 changer transitions 0/382 dead transitions. [2023-11-29 03:26:39,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 382 transitions, 831 flow [2023-11-29 03:26:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:26:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:26:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-11-29 03:26:39,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9221411192214112 [2023-11-29 03:26:39,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-11-29 03:26:39,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-11-29 03:26:39,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:39,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-11-29 03:26:39,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:39,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:39,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:39,106 INFO L175 Difference]: Start difference. First operand has 386 places, 381 transitions, 795 flow. Second operand 3 states and 1137 transitions. [2023-11-29 03:26:39,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 382 transitions, 831 flow [2023-11-29 03:26:39,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 382 transitions, 813 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 03:26:39,113 INFO L231 Difference]: Finished difference. Result has 381 places, 382 transitions, 789 flow [2023-11-29 03:26:39,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=381, PETRI_TRANSITIONS=382} [2023-11-29 03:26:39,115 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -5 predicate places. [2023-11-29 03:26:39,115 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 382 transitions, 789 flow [2023-11-29 03:26:39,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:39,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:39,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:39,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:26:39,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:39,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:39,117 INFO L85 PathProgramCache]: Analyzing trace with hash 353769318, now seen corresponding path program 1 times [2023-11-29 03:26:39,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:39,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112476095] [2023-11-29 03:26:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:39,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:39,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160356723] [2023-11-29 03:26:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:39,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:39,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:26:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:39,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:26:39,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:39,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:26:39,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 03:26:39,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:39,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-29 03:26:39,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:39,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-29 03:26:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:39,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:39,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112476095] [2023-11-29 03:26:39,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160356723] [2023-11-29 03:26:39,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160356723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:39,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:39,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:39,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529832884] [2023-11-29 03:26:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:39,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:39,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:39,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:40,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 411 [2023-11-29 03:26:40,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 382 transitions, 789 flow. Second operand has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:40,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:40,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 411 [2023-11-29 03:26:40,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:40,288 INFO L124 PetriNetUnfolderBase]: 8/713 cut-off events. [2023-11-29 03:26:40,288 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 03:26:40,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 713 events. 8/713 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1483 event pairs, 0 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 729. Up to 163 conditions per place. [2023-11-29 03:26:40,292 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 58 selfloop transitions, 5 changer transitions 0/381 dead transitions. [2023-11-29 03:26:40,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 381 transitions, 913 flow [2023-11-29 03:26:40,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2014 transitions. [2023-11-29 03:26:40,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8167072181670721 [2023-11-29 03:26:40,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2014 transitions. [2023-11-29 03:26:40,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2014 transitions. [2023-11-29 03:26:40,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:40,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2014 transitions. [2023-11-29 03:26:40,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.6666666666667) internal successors, (2014), 6 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:40,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:40,312 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:40,312 INFO L175 Difference]: Start difference. First operand has 381 places, 382 transitions, 789 flow. Second operand 6 states and 2014 transitions. [2023-11-29 03:26:40,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 381 transitions, 913 flow [2023-11-29 03:26:40,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 381 transitions, 911 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:26:40,322 INFO L231 Difference]: Finished difference. Result has 384 places, 381 transitions, 795 flow [2023-11-29 03:26:40,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=384, PETRI_TRANSITIONS=381} [2023-11-29 03:26:40,324 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -2 predicate places. [2023-11-29 03:26:40,324 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 381 transitions, 795 flow [2023-11-29 03:26:40,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.5) internal successors, (1977), 6 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:40,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:40,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:40,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:26:40,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:40,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:40,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:40,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1428408559, now seen corresponding path program 1 times [2023-11-29 03:26:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:40,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894418476] [2023-11-29 03:26:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:40,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:40,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:40,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544506625] [2023-11-29 03:26:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:40,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:40,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:40,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:40,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:26:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:40,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:26:40,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:40,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 03:26:40,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 03:26:40,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:40,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 03:26:40,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:40,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 03:26:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:40,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894418476] [2023-11-29 03:26:40,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544506625] [2023-11-29 03:26:40,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544506625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:40,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:40,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34116452] [2023-11-29 03:26:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:40,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:41,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 411 [2023-11-29 03:26:41,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 381 transitions, 795 flow. Second operand has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:41,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:41,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 411 [2023-11-29 03:26:41,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:41,687 INFO L124 PetriNetUnfolderBase]: 165/1302 cut-off events. [2023-11-29 03:26:41,687 INFO L125 PetriNetUnfolderBase]: For 11/15 co-relation queries the response was YES. [2023-11-29 03:26:41,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1302 events. 165/1302 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5810 event pairs, 144 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1411. Up to 496 conditions per place. [2023-11-29 03:26:41,694 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 91 selfloop transitions, 5 changer transitions 0/380 dead transitions. [2023-11-29 03:26:41,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 380 transitions, 985 flow [2023-11-29 03:26:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1849 transitions. [2023-11-29 03:26:41,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7497972424979724 [2023-11-29 03:26:41,701 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1849 transitions. [2023-11-29 03:26:41,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1849 transitions. [2023-11-29 03:26:41,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:41,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1849 transitions. [2023-11-29 03:26:41,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.1666666666667) internal successors, (1849), 6 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:41,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:41,714 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:41,714 INFO L175 Difference]: Start difference. First operand has 384 places, 381 transitions, 795 flow. Second operand 6 states and 1849 transitions. [2023-11-29 03:26:41,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 380 transitions, 985 flow [2023-11-29 03:26:41,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 380 transitions, 975 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:41,723 INFO L231 Difference]: Finished difference. Result has 383 places, 380 transitions, 793 flow [2023-11-29 03:26:41,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=793, PETRI_PLACES=383, PETRI_TRANSITIONS=380} [2023-11-29 03:26:41,724 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -3 predicate places. [2023-11-29 03:26:41,725 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 380 transitions, 793 flow [2023-11-29 03:26:41,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:41,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:41,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:41,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:26:41,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:41,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:41,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1706520782, now seen corresponding path program 1 times [2023-11-29 03:26:41,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:41,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102796190] [2023-11-29 03:26:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:41,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:41,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:41,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198122085] [2023-11-29 03:26:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:41,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:41,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:41,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:26:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:42,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:26:42,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:42,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:26:42,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 03:26:42,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:42,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-29 03:26:42,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:42,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-29 03:26:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:42,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:42,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102796190] [2023-11-29 03:26:42,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198122085] [2023-11-29 03:26:42,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198122085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:42,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:42,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:42,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788994469] [2023-11-29 03:26:42,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:42,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:42,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:42,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 411 [2023-11-29 03:26:42,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 380 transitions, 793 flow. Second operand has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:42,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:42,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 411 [2023-11-29 03:26:42,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:43,042 INFO L124 PetriNetUnfolderBase]: 165/1298 cut-off events. [2023-11-29 03:26:43,043 INFO L125 PetriNetUnfolderBase]: For 11/15 co-relation queries the response was YES. [2023-11-29 03:26:43,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 1298 events. 165/1298 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5825 event pairs, 144 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1427. Up to 480 conditions per place. [2023-11-29 03:26:43,050 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 87 selfloop transitions, 5 changer transitions 0/379 dead transitions. [2023-11-29 03:26:43,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 379 transitions, 975 flow [2023-11-29 03:26:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1869 transitions. [2023-11-29 03:26:43,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7579075425790754 [2023-11-29 03:26:43,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1869 transitions. [2023-11-29 03:26:43,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1869 transitions. [2023-11-29 03:26:43,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:43,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1869 transitions. [2023-11-29 03:26:43,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:43,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:43,069 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:43,069 INFO L175 Difference]: Start difference. First operand has 383 places, 380 transitions, 793 flow. Second operand 6 states and 1869 transitions. [2023-11-29 03:26:43,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 379 transitions, 975 flow [2023-11-29 03:26:43,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 379 transitions, 965 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:43,079 INFO L231 Difference]: Finished difference. Result has 382 places, 379 transitions, 791 flow [2023-11-29 03:26:43,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=382, PETRI_TRANSITIONS=379} [2023-11-29 03:26:43,080 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -4 predicate places. [2023-11-29 03:26:43,080 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 379 transitions, 791 flow [2023-11-29 03:26:43,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.0) internal successors, (1812), 6 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:43,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:43,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:43,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:26:43,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:43,283 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:43,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:43,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1937656223, now seen corresponding path program 1 times [2023-11-29 03:26:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:43,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240023722] [2023-11-29 03:26:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:43,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:43,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:43,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382768697] [2023-11-29 03:26:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:43,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:43,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:43,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:43,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:26:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:43,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 03:26:43,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:43,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:26:43,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 03:26:43,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:43,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 03:26:43,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:43,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 03:26:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:43,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:43,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:43,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240023722] [2023-11-29 03:26:43,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382768697] [2023-11-29 03:26:43,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382768697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:43,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:43,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:26:43,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791332236] [2023-11-29 03:26:43,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:43,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:26:43,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:43,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:26:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:26:44,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 411 [2023-11-29 03:26:44,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 379 transitions, 791 flow. Second operand has 13 states, 13 states have (on average 282.9230769230769) internal successors, (3678), 13 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:44,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:44,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 411 [2023-11-29 03:26:44,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:45,174 INFO L124 PetriNetUnfolderBase]: 204/1443 cut-off events. [2023-11-29 03:26:45,174 INFO L125 PetriNetUnfolderBase]: For 7/12 co-relation queries the response was YES. [2023-11-29 03:26:45,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 1443 events. 204/1443 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7753 event pairs, 180 based on Foata normal form. 0/1356 useless extension candidates. Maximal degree in co-relation 1692. Up to 436 conditions per place. [2023-11-29 03:26:45,180 INFO L140 encePairwiseOnDemand]: 391/411 looper letters, 101 selfloop transitions, 19 changer transitions 0/389 dead transitions. [2023-11-29 03:26:45,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 389 transitions, 1051 flow [2023-11-29 03:26:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:26:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 03:26:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4585 transitions. [2023-11-29 03:26:45,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6972323600973236 [2023-11-29 03:26:45,192 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4585 transitions. [2023-11-29 03:26:45,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4585 transitions. [2023-11-29 03:26:45,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:45,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4585 transitions. [2023-11-29 03:26:45,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 286.5625) internal successors, (4585), 16 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:45,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 411.0) internal successors, (6987), 17 states have internal predecessors, (6987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:45,212 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 411.0) internal successors, (6987), 17 states have internal predecessors, (6987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:45,212 INFO L175 Difference]: Start difference. First operand has 382 places, 379 transitions, 791 flow. Second operand 16 states and 4585 transitions. [2023-11-29 03:26:45,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 389 transitions, 1051 flow [2023-11-29 03:26:45,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 389 transitions, 1041 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:45,250 INFO L231 Difference]: Finished difference. Result has 392 places, 379 transitions, 823 flow [2023-11-29 03:26:45,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=823, PETRI_PLACES=392, PETRI_TRANSITIONS=379} [2023-11-29 03:26:45,252 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 6 predicate places. [2023-11-29 03:26:45,252 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 379 transitions, 823 flow [2023-11-29 03:26:45,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 282.9230769230769) internal successors, (3678), 13 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:45,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:45,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:45,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 03:26:45,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:45,454 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:45,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:45,455 INFO L85 PathProgramCache]: Analyzing trace with hash -961111548, now seen corresponding path program 1 times [2023-11-29 03:26:45,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:45,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059200316] [2023-11-29 03:26:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:45,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:45,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515843414] [2023-11-29 03:26:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:45,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:45,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:45,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:45,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:26:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:45,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:26:45,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:45,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:26:45,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 03:26:45,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:45,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-29 03:26:45,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:45,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-29 03:26:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:45,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:45,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059200316] [2023-11-29 03:26:45,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515843414] [2023-11-29 03:26:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515843414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587972520] [2023-11-29 03:26:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:45,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:46,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 411 [2023-11-29 03:26:46,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 379 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:46,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:46,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 411 [2023-11-29 03:26:46,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:46,583 INFO L124 PetriNetUnfolderBase]: 165/1290 cut-off events. [2023-11-29 03:26:46,583 INFO L125 PetriNetUnfolderBase]: For 11/15 co-relation queries the response was YES. [2023-11-29 03:26:46,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 1290 events. 165/1290 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5752 event pairs, 144 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1244. Up to 500 conditions per place. [2023-11-29 03:26:46,588 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 92 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2023-11-29 03:26:46,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 378 transitions, 1015 flow [2023-11-29 03:26:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:46,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1844 transitions. [2023-11-29 03:26:46,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7477696674776967 [2023-11-29 03:26:46,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1844 transitions. [2023-11-29 03:26:46,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1844 transitions. [2023-11-29 03:26:46,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:46,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1844 transitions. [2023-11-29 03:26:46,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:46,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:46,600 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:46,600 INFO L175 Difference]: Start difference. First operand has 392 places, 379 transitions, 823 flow. Second operand 6 states and 1844 transitions. [2023-11-29 03:26:46,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 378 transitions, 1015 flow [2023-11-29 03:26:46,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 378 transitions, 979 flow, removed 0 selfloop flow, removed 14 redundant places. [2023-11-29 03:26:46,607 INFO L231 Difference]: Finished difference. Result has 382 places, 378 transitions, 795 flow [2023-11-29 03:26:46,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=382, PETRI_TRANSITIONS=378} [2023-11-29 03:26:46,608 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, -4 predicate places. [2023-11-29 03:26:46,608 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 378 transitions, 795 flow [2023-11-29 03:26:46,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:46,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:46,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:46,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:26:46,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:46,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:46,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash -46542288, now seen corresponding path program 1 times [2023-11-29 03:26:46,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:46,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249721699] [2023-11-29 03:26:46,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:46,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:46,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:46,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493091540] [2023-11-29 03:26:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:46,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:46,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:46,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:46,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:26:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:47,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:26:47,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:47,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:26:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:47,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:47,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249721699] [2023-11-29 03:26:47,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:47,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493091540] [2023-11-29 03:26:47,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493091540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:26:47,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:26:47,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:26:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976532589] [2023-11-29 03:26:47,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:26:47,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:26:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:26:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:26:47,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:26:47,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 378 transitions, 795 flow. Second operand has 8 states, 8 states have (on average 371.75) internal successors, (2974), 8 states have internal predecessors, (2974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:47,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:47,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:26:47,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:47,604 INFO L124 PetriNetUnfolderBase]: 16/907 cut-off events. [2023-11-29 03:26:47,604 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-29 03:26:47,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 907 events. 16/907 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1237 event pairs, 8 based on Foata normal form. 4/885 useless extension candidates. Maximal degree in co-relation 811. Up to 38 conditions per place. [2023-11-29 03:26:47,606 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 19 selfloop transitions, 9 changer transitions 0/386 dead transitions. [2023-11-29 03:26:47,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 386 transitions, 869 flow [2023-11-29 03:26:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:26:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:26:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3360 transitions. [2023-11-29 03:26:47,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9083536090835361 [2023-11-29 03:26:47,613 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3360 transitions. [2023-11-29 03:26:47,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3360 transitions. [2023-11-29 03:26:47,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:47,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3360 transitions. [2023-11-29 03:26:47,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 373.3333333333333) internal successors, (3360), 9 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:47,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:47,628 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:47,628 INFO L175 Difference]: Start difference. First operand has 382 places, 378 transitions, 795 flow. Second operand 9 states and 3360 transitions. [2023-11-29 03:26:47,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 386 transitions, 869 flow [2023-11-29 03:26:47,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 386 transitions, 859 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:47,637 INFO L231 Difference]: Finished difference. Result has 388 places, 384 transitions, 835 flow [2023-11-29 03:26:47,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=835, PETRI_PLACES=388, PETRI_TRANSITIONS=384} [2023-11-29 03:26:47,639 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 2 predicate places. [2023-11-29 03:26:47,639 INFO L495 AbstractCegarLoop]: Abstraction has has 388 places, 384 transitions, 835 flow [2023-11-29 03:26:47,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 371.75) internal successors, (2974), 8 states have internal predecessors, (2974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:47,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:47,641 INFO L208 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, 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] [2023-11-29 03:26:47,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:26:47,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:26:47,841 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:47,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:47,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1237423792, now seen corresponding path program 2 times [2023-11-29 03:26:47,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:47,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354256880] [2023-11-29 03:26:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:47,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:47,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:47,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72429868] [2023-11-29 03:26:47,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:26:47,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:47,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:47,903 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:47,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:26:48,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:26:48,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:26:48,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:26:48,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:48,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 03:26:48,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 03:26:48,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:48,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 03:26:48,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:48,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 03:26:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-11-29 03:26:48,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:48,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:48,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354256880] [2023-11-29 03:26:48,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72429868] [2023-11-29 03:26:48,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72429868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:48,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:48,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982710993] [2023-11-29 03:26:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:48,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:48,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:48,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 411 [2023-11-29 03:26:48,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 384 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:48,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:48,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 411 [2023-11-29 03:26:48,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:49,160 INFO L124 PetriNetUnfolderBase]: 8/882 cut-off events. [2023-11-29 03:26:49,160 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-29 03:26:49,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 882 events. 8/882 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 882 event pairs, 0 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 979. Up to 207 conditions per place. [2023-11-29 03:26:49,163 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 58 selfloop transitions, 5 changer transitions 0/383 dead transitions. [2023-11-29 03:26:49,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 383 transitions, 959 flow [2023-11-29 03:26:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:49,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2014 transitions. [2023-11-29 03:26:49,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8167072181670721 [2023-11-29 03:26:49,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2014 transitions. [2023-11-29 03:26:49,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2014 transitions. [2023-11-29 03:26:49,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:49,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2014 transitions. [2023-11-29 03:26:49,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.6666666666667) internal successors, (2014), 6 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:49,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:49,177 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:49,177 INFO L175 Difference]: Start difference. First operand has 388 places, 384 transitions, 835 flow. Second operand 6 states and 2014 transitions. [2023-11-29 03:26:49,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 383 transitions, 959 flow [2023-11-29 03:26:49,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 383 transitions, 953 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 03:26:49,183 INFO L231 Difference]: Finished difference. Result has 391 places, 383 transitions, 837 flow [2023-11-29 03:26:49,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=837, PETRI_PLACES=391, PETRI_TRANSITIONS=383} [2023-11-29 03:26:49,184 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 5 predicate places. [2023-11-29 03:26:49,184 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 383 transitions, 837 flow [2023-11-29 03:26:49,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:49,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:49,185 INFO L208 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, 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] [2023-11-29 03:26:49,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:26:49,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:26:49,386 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:49,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash -746191700, now seen corresponding path program 1 times [2023-11-29 03:26:49,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:49,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348172624] [2023-11-29 03:26:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:49,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:49,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775210550] [2023-11-29 03:26:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:49,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:49,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:49,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:49,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:26:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:49,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:26:49,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:50,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:26:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:50,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348172624] [2023-11-29 03:26:50,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:50,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775210550] [2023-11-29 03:26:50,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775210550] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:26:50,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:26:50,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 03:26:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283951210] [2023-11-29 03:26:50,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:26:50,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:26:50,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:50,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:26:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:26:50,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:26:50,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 383 transitions, 837 flow. Second operand has 16 states, 16 states have (on average 371.875) internal successors, (5950), 16 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:50,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:50,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:26:50,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:51,090 INFO L124 PetriNetUnfolderBase]: 16/1634 cut-off events. [2023-11-29 03:26:51,090 INFO L125 PetriNetUnfolderBase]: For 54/55 co-relation queries the response was YES. [2023-11-29 03:26:51,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 1634 events. 16/1634 cut-off events. For 54/55 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1231 event pairs, 8 based on Foata normal form. 8/1617 useless extension candidates. Maximal degree in co-relation 1643. Up to 38 conditions per place. [2023-11-29 03:26:51,094 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 23 selfloop transitions, 21 changer transitions 0/401 dead transitions. [2023-11-29 03:26:51,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 401 transitions, 1013 flow [2023-11-29 03:26:51,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:26:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 03:26:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7818 transitions. [2023-11-29 03:26:51,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9058046576294752 [2023-11-29 03:26:51,107 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 7818 transitions. [2023-11-29 03:26:51,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 7818 transitions. [2023-11-29 03:26:51,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:51,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 7818 transitions. [2023-11-29 03:26:51,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 372.2857142857143) internal successors, (7818), 21 states have internal predecessors, (7818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:51,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 411.0) internal successors, (9042), 22 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:51,131 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 411.0) internal successors, (9042), 22 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:51,131 INFO L175 Difference]: Start difference. First operand has 391 places, 383 transitions, 837 flow. Second operand 21 states and 7818 transitions. [2023-11-29 03:26:51,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 401 transitions, 1013 flow [2023-11-29 03:26:51,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 401 transitions, 1003 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:51,137 INFO L231 Difference]: Finished difference. Result has 411 places, 396 transitions, 957 flow [2023-11-29 03:26:51,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=957, PETRI_PLACES=411, PETRI_TRANSITIONS=396} [2023-11-29 03:26:51,138 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 25 predicate places. [2023-11-29 03:26:51,138 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 396 transitions, 957 flow [2023-11-29 03:26:51,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 371.875) internal successors, (5950), 16 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:51,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:51,140 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:51,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:26:51,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:26:51,340 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:51,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1261146708, now seen corresponding path program 2 times [2023-11-29 03:26:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114723743] [2023-11-29 03:26:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:51,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675537032] [2023-11-29 03:26:51,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:26:51,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:51,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:51,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:51,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:26:51,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:26:51,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:26:51,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:26:51,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:51,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 03:26:51,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 03:26:51,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:51,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 03:26:51,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:26:51,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 03:26:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked. [2023-11-29 03:26:51,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:51,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:51,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114723743] [2023-11-29 03:26:51,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:51,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675537032] [2023-11-29 03:26:51,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675537032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:51,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:51,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:26:51,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23771796] [2023-11-29 03:26:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:26:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:51,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:26:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:26:52,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 411 [2023-11-29 03:26:52,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 396 transitions, 957 flow. Second operand has 6 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:52,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:52,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 411 [2023-11-29 03:26:52,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:53,099 INFO L124 PetriNetUnfolderBase]: 8/1609 cut-off events. [2023-11-29 03:26:53,099 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-11-29 03:26:53,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2259 conditions, 1609 events. 8/1609 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 877 event pairs, 0 based on Foata normal form. 0/1590 useless extension candidates. Maximal degree in co-relation 2062. Up to 431 conditions per place. [2023-11-29 03:26:53,103 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 58 selfloop transitions, 5 changer transitions 0/395 dead transitions. [2023-11-29 03:26:53,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 395 transitions, 1081 flow [2023-11-29 03:26:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:26:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:26:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2014 transitions. [2023-11-29 03:26:53,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8167072181670721 [2023-11-29 03:26:53,107 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2014 transitions. [2023-11-29 03:26:53,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2014 transitions. [2023-11-29 03:26:53,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:53,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2014 transitions. [2023-11-29 03:26:53,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.6666666666667) internal successors, (2014), 6 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:53,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:53,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:53,115 INFO L175 Difference]: Start difference. First operand has 411 places, 396 transitions, 957 flow. Second operand 6 states and 2014 transitions. [2023-11-29 03:26:53,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 395 transitions, 1081 flow [2023-11-29 03:26:53,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 395 transitions, 1057 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 03:26:53,124 INFO L231 Difference]: Finished difference. Result has 409 places, 395 transitions, 941 flow [2023-11-29 03:26:53,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=941, PETRI_PLACES=409, PETRI_TRANSITIONS=395} [2023-11-29 03:26:53,125 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 23 predicate places. [2023-11-29 03:26:53,125 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 395 transitions, 941 flow [2023-11-29 03:26:53,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 332.3333333333333) internal successors, (1994), 6 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:53,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:53,126 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:53,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:26:53,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:53,327 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:53,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash -419453947, now seen corresponding path program 1 times [2023-11-29 03:26:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:53,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317487080] [2023-11-29 03:26:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:53,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:53,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109986471] [2023-11-29 03:26:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:53,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:53,442 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:53,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:26:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:54,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:26:54,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1919 trivial. 0 not checked. [2023-11-29 03:26:54,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:26:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317487080] [2023-11-29 03:26:54,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109986471] [2023-11-29 03:26:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109986471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:54,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:54,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:26:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618711316] [2023-11-29 03:26:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:54,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:26:54,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:26:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:26:54,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2023-11-29 03:26:54,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 395 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:54,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:54,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2023-11-29 03:26:54,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:54,675 INFO L124 PetriNetUnfolderBase]: 39/1846 cut-off events. [2023-11-29 03:26:54,675 INFO L125 PetriNetUnfolderBase]: For 94/98 co-relation queries the response was YES. [2023-11-29 03:26:54,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1846 events. 39/1846 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2751 event pairs, 0 based on Foata normal form. 2/1796 useless extension candidates. Maximal degree in co-relation 2091. Up to 72 conditions per place. [2023-11-29 03:26:54,680 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 22 selfloop transitions, 2 changer transitions 0/403 dead transitions. [2023-11-29 03:26:54,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 403 transitions, 1005 flow [2023-11-29 03:26:54,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:26:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:26:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2023-11-29 03:26:54,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9278183292781833 [2023-11-29 03:26:54,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1144 transitions. [2023-11-29 03:26:54,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1144 transitions. [2023-11-29 03:26:54,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:54,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1144 transitions. [2023-11-29 03:26:54,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.3333333333333) internal successors, (1144), 3 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:54,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:54,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 411.0) internal successors, (1644), 4 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:54,685 INFO L175 Difference]: Start difference. First operand has 409 places, 395 transitions, 941 flow. Second operand 3 states and 1144 transitions. [2023-11-29 03:26:54,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 403 transitions, 1005 flow [2023-11-29 03:26:54,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 403 transitions, 995 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:26:54,691 INFO L231 Difference]: Finished difference. Result has 407 places, 395 transitions, 939 flow [2023-11-29 03:26:54,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=407, PETRI_TRANSITIONS=395} [2023-11-29 03:26:54,692 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 21 predicate places. [2023-11-29 03:26:54,693 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 395 transitions, 939 flow [2023-11-29 03:26:54,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:54,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:54,694 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-29 03:26:54,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:26:54,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:26:54,894 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:54,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:54,895 INFO L85 PathProgramCache]: Analyzing trace with hash 426205087, now seen corresponding path program 1 times [2023-11-29 03:26:54,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:54,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534458043] [2023-11-29 03:26:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:55,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:55,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120277171] [2023-11-29 03:26:55,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:55,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:55,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:55,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:55,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:26:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:55,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:26:55,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:26:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 1 proven. 1918 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:26:56,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:26:57,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 1 proven. 1918 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:26:57,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534458043] [2023-11-29 03:26:57,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:26:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120277171] [2023-11-29 03:26:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120277171] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:26:57,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:26:57,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-29 03:26:57,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342094582] [2023-11-29 03:26:57,329 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:26:57,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 03:26:57,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:57,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 03:26:57,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:26:57,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:26:57,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 395 transitions, 939 flow. Second operand has 32 states, 32 states have (on average 371.96875) internal successors, (11903), 32 states have internal predecessors, (11903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:57,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:57,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:26:57,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:58,900 INFO L124 PetriNetUnfolderBase]: 15/3086 cut-off events. [2023-11-29 03:26:58,900 INFO L125 PetriNetUnfolderBase]: For 571/572 co-relation queries the response was YES. [2023-11-29 03:26:58,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3648 conditions, 3086 events. 15/3086 cut-off events. For 571/572 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1259 event pairs, 8 based on Foata normal form. 16/3080 useless extension candidates. Maximal degree in co-relation 3396. Up to 52 conditions per place. [2023-11-29 03:26:58,907 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 31 selfloop transitions, 45 changer transitions 0/432 dead transitions. [2023-11-29 03:26:58,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 432 transitions, 1363 flow [2023-11-29 03:26:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 03:26:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-11-29 03:26:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16734 transitions. [2023-11-29 03:26:58,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047850770478507 [2023-11-29 03:26:58,922 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 16734 transitions. [2023-11-29 03:26:58,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 16734 transitions. [2023-11-29 03:26:58,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:58,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 16734 transitions. [2023-11-29 03:26:58,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 371.8666666666667) internal successors, (16734), 45 states have internal predecessors, (16734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:58,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 411.0) internal successors, (18906), 46 states have internal predecessors, (18906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:58,958 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 411.0) internal successors, (18906), 46 states have internal predecessors, (18906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:58,958 INFO L175 Difference]: Start difference. First operand has 407 places, 395 transitions, 939 flow. Second operand 45 states and 16734 transitions. [2023-11-29 03:26:58,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 432 transitions, 1363 flow [2023-11-29 03:26:58,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 432 transitions, 1359 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:26:58,968 INFO L231 Difference]: Finished difference. Result has 458 places, 420 transitions, 1237 flow [2023-11-29 03:26:58,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1237, PETRI_PLACES=458, PETRI_TRANSITIONS=420} [2023-11-29 03:26:58,969 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 72 predicate places. [2023-11-29 03:26:58,969 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 420 transitions, 1237 flow [2023-11-29 03:26:58,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 371.96875) internal successors, (11903), 32 states have internal predecessors, (11903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:26:58,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:58,971 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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] [2023-11-29 03:26:58,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:26:59,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:26:59,172 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:26:59,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:59,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1787776415, now seen corresponding path program 2 times [2023-11-29 03:26:59,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:59,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809341643] [2023-11-29 03:26:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:59,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:59,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:26:59,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325306729] [2023-11-29 03:26:59,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:26:59,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:26:59,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:26:59,434 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:26:59,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:27:00,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:27:00,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:27:00,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 5832 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 03:27:00,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9576 backedges. 1 proven. 9570 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:27:02,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 9576 backedges. 1 proven. 9570 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 03:27:04,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:04,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809341643] [2023-11-29 03:27:04,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:04,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325306729] [2023-11-29 03:27:04,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325306729] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:04,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:04,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 61 [2023-11-29 03:27:04,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095666479] [2023-11-29 03:27:04,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:04,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-29 03:27:04,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:04,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-29 03:27:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 03:27:04,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:27:04,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 420 transitions, 1237 flow. Second operand has 61 states, 61 states have (on average 372.0163934426229) internal successors, (22693), 61 states have internal predecessors, (22693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:04,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:27:04,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:27:04,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:27:08,928 INFO L124 PetriNetUnfolderBase]: 15/5816 cut-off events. [2023-11-29 03:27:08,929 INFO L125 PetriNetUnfolderBase]: For 4152/4153 co-relation queries the response was YES. [2023-11-29 03:27:08,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7220 conditions, 5816 events. 15/5816 cut-off events. For 4152/4153 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1255 event pairs, 8 based on Foata normal form. 30/5824 useless extension candidates. Maximal degree in co-relation 6961. Up to 112 conditions per place. [2023-11-29 03:27:08,944 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 46 selfloop transitions, 90 changer transitions 0/492 dead transitions. [2023-11-29 03:27:08,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 492 transitions, 2255 flow [2023-11-29 03:27:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-29 03:27:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2023-11-29 03:27:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 33451 transitions. [2023-11-29 03:27:08,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9043254933765883 [2023-11-29 03:27:08,966 INFO L72 ComplementDD]: Start complementDD. Operand 90 states and 33451 transitions. [2023-11-29 03:27:08,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 33451 transitions. [2023-11-29 03:27:08,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:27:08,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 90 states and 33451 transitions. [2023-11-29 03:27:09,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 91 states, 90 states have (on average 371.6777777777778) internal successors, (33451), 90 states have internal predecessors, (33451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:09,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 91 states, 91 states have (on average 411.0) internal successors, (37401), 91 states have internal predecessors, (37401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:09,031 INFO L81 ComplementDD]: Finished complementDD. Result has 91 states, 91 states have (on average 411.0) internal successors, (37401), 91 states have internal predecessors, (37401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:09,032 INFO L175 Difference]: Start difference. First operand has 458 places, 420 transitions, 1237 flow. Second operand 90 states and 33451 transitions. [2023-11-29 03:27:09,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 492 transitions, 2255 flow [2023-11-29 03:27:09,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 492 transitions, 2169 flow, removed 25 selfloop flow, removed 18 redundant places. [2023-11-29 03:27:09,046 INFO L231 Difference]: Finished difference. Result has 545 places, 466 transitions, 1835 flow [2023-11-29 03:27:09,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=1835, PETRI_PLACES=545, PETRI_TRANSITIONS=466} [2023-11-29 03:27:09,047 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 159 predicate places. [2023-11-29 03:27:09,048 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 466 transitions, 1835 flow [2023-11-29 03:27:09,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 372.0163934426229) internal successors, (22693), 61 states have internal predecessors, (22693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:09,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:27:09,051 INFO L208 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, 30, 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] [2023-11-29 03:27:09,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:27:09,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:27:09,251 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:27:09,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash 922241651, now seen corresponding path program 3 times [2023-11-29 03:27:09,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:09,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977830332] [2023-11-29 03:27:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:09,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:09,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:27:09,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292670856] [2023-11-29 03:27:09,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:27:09,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:09,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:27:09,686 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:27:09,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:27:10,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:27:10,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:27:10,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:27:11,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 39621 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39620 trivial. 0 not checked. [2023-11-29 03:27:13,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 39621 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39620 trivial. 0 not checked. [2023-11-29 03:27:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:16,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977830332] [2023-11-29 03:27:16,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:16,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292670856] [2023-11-29 03:27:16,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292670856] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:16,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:16,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 03:27:16,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648872281] [2023-11-29 03:27:16,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:16,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:27:16,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:27:16,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:27:16,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:27:16,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 466 transitions, 1835 flow. Second operand has 8 states, 8 states have (on average 371.875) internal successors, (2975), 8 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:16,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:27:16,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:27:16,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:27:23,964 INFO L124 PetriNetUnfolderBase]: 16/8578 cut-off events. [2023-11-29 03:27:23,964 INFO L125 PetriNetUnfolderBase]: For 2981/2982 co-relation queries the response was YES. [2023-11-29 03:27:23,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10602 conditions, 8578 events. 16/8578 cut-off events. For 2981/2982 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 697 event pairs, 8 based on Foata normal form. 2/8558 useless extension candidates. Maximal degree in co-relation 10327. Up to 168 conditions per place. [2023-11-29 03:27:23,978 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 19 selfloop transitions, 9 changer transitions 0/474 dead transitions. [2023-11-29 03:27:23,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 474 transitions, 1909 flow [2023-11-29 03:27:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:27:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:27:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3360 transitions. [2023-11-29 03:27:23,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9083536090835361 [2023-11-29 03:27:23,981 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3360 transitions. [2023-11-29 03:27:23,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3360 transitions. [2023-11-29 03:27:23,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:27:23,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3360 transitions. [2023-11-29 03:27:23,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 373.3333333333333) internal successors, (3360), 9 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:23,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:23,987 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 411.0) internal successors, (4110), 10 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:23,987 INFO L175 Difference]: Start difference. First operand has 545 places, 466 transitions, 1835 flow. Second operand 9 states and 3360 transitions. [2023-11-29 03:27:23,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 474 transitions, 1909 flow [2023-11-29 03:27:24,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 474 transitions, 1791 flow, removed 17 selfloop flow, removed 42 redundant places. [2023-11-29 03:27:24,014 INFO L231 Difference]: Finished difference. Result has 514 places, 472 transitions, 1767 flow [2023-11-29 03:27:24,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1717, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1767, PETRI_PLACES=514, PETRI_TRANSITIONS=472} [2023-11-29 03:27:24,015 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 128 predicate places. [2023-11-29 03:27:24,015 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 472 transitions, 1767 flow [2023-11-29 03:27:24,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 371.875) internal successors, (2975), 8 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:24,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:27:24,019 INFO L208 CegarLoopForPetriNet]: trace histogram [90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 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, 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] [2023-11-29 03:27:24,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:27:24,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:27:24,220 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:27:24,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1005678611, now seen corresponding path program 4 times [2023-11-29 03:27:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:24,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580484204] [2023-11-29 03:27:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:25,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:27:25,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954366117] [2023-11-29 03:27:25,366 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:27:25,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:27:25,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:27:25,367 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:27:25,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:27:32,225 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:27:32,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:27:32,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 32488 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:27:32,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:27:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 364820 backedges. 0 proven. 245970 refuted. 0 times theorem prover too weak. 118850 trivial. 0 not checked. [2023-11-29 03:27:40,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:27:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 364820 backedges. 0 proven. 245970 refuted. 0 times theorem prover too weak. 118850 trivial. 0 not checked. [2023-11-29 03:27:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580484204] [2023-11-29 03:27:49,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:27:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954366117] [2023-11-29 03:27:49,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954366117] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:27:49,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:27:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 03:27:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113325165] [2023-11-29 03:27:49,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:27:49,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:27:49,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:49,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:27:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:27:49,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2023-11-29 03:27:49,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 472 transitions, 1767 flow. Second operand has 16 states, 16 states have (on average 371.9375) internal successors, (5951), 16 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:27:49,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:27:49,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2023-11-29 03:27:49,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:28:25,983 INFO L124 PetriNetUnfolderBase]: 20/19618 cut-off events. [2023-11-29 03:28:25,983 INFO L125 PetriNetUnfolderBase]: For 7426/7427 co-relation queries the response was YES. [2023-11-29 03:28:26,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23868 conditions, 19618 events. 20/19618 cut-off events. For 7426/7427 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 699 event pairs, 8 based on Foata normal form. 4/19600 useless extension candidates. Maximal degree in co-relation 23590. Up to 392 conditions per place. [2023-11-29 03:28:26,032 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 23 selfloop transitions, 21 changer transitions 0/490 dead transitions. [2023-11-29 03:28:26,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 490 transitions, 1951 flow [2023-11-29 03:28:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:28:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 03:28:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7818 transitions. [2023-11-29 03:28:26,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9058046576294752 [2023-11-29 03:28:26,040 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 7818 transitions. [2023-11-29 03:28:26,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 7818 transitions. [2023-11-29 03:28:26,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:28:26,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 7818 transitions. [2023-11-29 03:28:26,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 372.2857142857143) internal successors, (7818), 21 states have internal predecessors, (7818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:28:26,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 411.0) internal successors, (9042), 22 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:28:26,058 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 411.0) internal successors, (9042), 22 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:28:26,058 INFO L175 Difference]: Start difference. First operand has 514 places, 472 transitions, 1767 flow. Second operand 21 states and 7818 transitions. [2023-11-29 03:28:26,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 490 transitions, 1951 flow [2023-11-29 03:28:26,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 490 transitions, 1937 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-29 03:28:26,114 INFO L231 Difference]: Finished difference. Result has 538 places, 485 transitions, 1891 flow [2023-11-29 03:28:26,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1761, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1891, PETRI_PLACES=538, PETRI_TRANSITIONS=485} [2023-11-29 03:28:26,115 INFO L281 CegarLoopForPetriNet]: 386 programPoint places, 152 predicate places. [2023-11-29 03:28:26,115 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 485 transitions, 1891 flow [2023-11-29 03:28:26,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 371.9375) internal successors, (5951), 16 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:28:26,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:28:26,125 INFO L208 CegarLoopForPetriNet]: trace histogram [210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-29 03:28:26,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 03:28:26,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:28:26,325 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-29 03:28:26,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:28:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash -442715309, now seen corresponding path program 5 times [2023-11-29 03:28:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:28:26,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790632424] [2023-11-29 03:28:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:28:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:28:28,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:28:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116886224] [2023-11-29 03:28:28,876 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:28:28,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:28:28,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:28:28,877 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:28:28,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0f434e3-7111-42cc-9f1e-2dfa16f4d9e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process