./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ --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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:41:10,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:41:10,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:41:10,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:41:10,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:41:10,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:41:10,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:41:10,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:41:10,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:41:10,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:41:10,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:41:10,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:41:10,407 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:41:10,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:41:10,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:41:10,409 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:41:10,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:41:10,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:41:10,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:41:10,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:41:10,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:41:10,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:41:10,420 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:41:10,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:41:10,421 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:41:10,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:41:10,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:41:10,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:41:10,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:41:10,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:41:10,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:10,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:41:10,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:41:10,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:41:10,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:41:10,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:41:10,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:41:10,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:41:10,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:41:10,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:41:10,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:41:10,433 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_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2023-11-23 22:41:10,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:41:10,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:41:10,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:41:10,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:41:10,834 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:41:10,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-23 22:41:13,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:41:14,331 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:41:14,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-23 22:41:14,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/data/e8a6c53fe/cecbbbfcd94c43a3a81658b5f0dbb5cf/FLAGea76a4a66 [2023-11-23 22:41:14,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/data/e8a6c53fe/cecbbbfcd94c43a3a81658b5f0dbb5cf [2023-11-23 22:41:14,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:41:14,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:41:14,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:14,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:41:14,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:41:14,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:14" (1/1) ... [2023-11-23 22:41:14,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8d3b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:14, skipping insertion in model container [2023-11-23 22:41:14,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:41:14" (1/1) ... [2023-11-23 22:41:14,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:41:15,068 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,070 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,071 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,073 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:15,122 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:41:15,197 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,201 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,215 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,216 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-23 22:41:15,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:41:15,343 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:41:15,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15 WrapperNode [2023-11-23 22:41:15,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:41:15,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:15,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:41:15,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:41:15,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,444 INFO L138 Inliner]: procedures = 278, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 314 [2023-11-23 22:41:15,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:41:15,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:41:15,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:41:15,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:41:15,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:41:15,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:41:15,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:41:15,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:41:15,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (1/1) ... [2023-11-23 22:41:15,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:41:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:15,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:41:15,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:41:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:41:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:41:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:41:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:41:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:41:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 22:41:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 22:41:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:41:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:41:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:41:15,621 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:41:15,789 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:41:15,792 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:41:16,443 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:41:16,477 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:41:16,477 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-23 22:41:16,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:16 BoogieIcfgContainer [2023-11-23 22:41:16,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:41:16,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:41:16,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:41:16,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:41:16,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:41:14" (1/3) ... [2023-11-23 22:41:16,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2178eab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:16, skipping insertion in model container [2023-11-23 22:41:16,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:41:15" (2/3) ... [2023-11-23 22:41:16,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2178eab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:41:16, skipping insertion in model container [2023-11-23 22:41:16,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:41:16" (3/3) ... [2023-11-23 22:41:16,489 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-11-23 22:41:16,499 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:41:16,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:41:16,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-23 22:41:16,512 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:41:16,640 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 22:41:16,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 316 places, 338 transitions, 683 flow [2023-11-23 22:41:16,897 INFO L124 PetriNetUnfolderBase]: 27/363 cut-off events. [2023-11-23 22:41:16,898 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 22:41:16,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 363 events. 27/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 928 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 181. Up to 4 conditions per place. [2023-11-23 22:41:16,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 316 places, 338 transitions, 683 flow [2023-11-23 22:41:16,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 338 transitions, 683 flow [2023-11-23 22:41:16,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:41:16,934 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;@54afb8d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:41:16,934 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-23 22:41:16,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:41:16,950 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2023-11-23 22:41:16,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:41:16,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:16,952 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] [2023-11-23 22:41:16,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:16,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash -555517914, now seen corresponding path program 1 times [2023-11-23 22:41:16,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:16,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347257981] [2023-11-23 22:41:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:16,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:17,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:17,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347257981] [2023-11-23 22:41:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347257981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:17,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:17,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653015215] [2023-11-23 22:41:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:17,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:17,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:17,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:18,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 338 [2023-11-23 22:41:18,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 338 transitions, 683 flow. Second operand has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:18,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 338 [2023-11-23 22:41:18,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:18,955 INFO L124 PetriNetUnfolderBase]: 163/930 cut-off events. [2023-11-23 22:41:18,956 INFO L125 PetriNetUnfolderBase]: For 11/15 co-relation queries the response was YES. [2023-11-23 22:41:18,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 930 events. 163/930 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5032 event pairs, 144 based on Foata normal form. 138/990 useless extension candidates. Maximal degree in co-relation 1079. Up to 374 conditions per place. [2023-11-23 22:41:18,970 INFO L140 encePairwiseOnDemand]: 307/338 looper letters, 76 selfloop transitions, 10 changer transitions 0/314 dead transitions. [2023-11-23 22:41:18,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 314 transitions, 807 flow [2023-11-23 22:41:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:18,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1487 transitions. [2023-11-23 22:41:18,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7332347140039448 [2023-11-23 22:41:19,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1487 transitions. [2023-11-23 22:41:19,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1487 transitions. [2023-11-23 22:41:19,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:19,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1487 transitions. [2023-11-23 22:41:19,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,080 INFO L175 Difference]: Start difference. First operand has 316 places, 338 transitions, 683 flow. Second operand 6 states and 1487 transitions. [2023-11-23 22:41:19,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 314 transitions, 807 flow [2023-11-23 22:41:19,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 314 transitions, 807 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:41:19,095 INFO L231 Difference]: Finished difference. Result has 316 places, 314 transitions, 655 flow [2023-11-23 22:41:19,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=316, PETRI_TRANSITIONS=314} [2023-11-23 22:41:19,102 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 0 predicate places. [2023-11-23 22:41:19,103 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 314 transitions, 655 flow [2023-11-23 22:41:19,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:19,105 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] [2023-11-23 22:41:19,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:41:19,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:19,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash 822275352, now seen corresponding path program 1 times [2023-11-23 22:41:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720707250] [2023-11-23 22:41:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:19,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:19,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720707250] [2023-11-23 22:41:19,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720707250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673478611] [2023-11-23 22:41:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:19,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:19,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:19,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:19,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 338 [2023-11-23 22:41:19,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 314 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:19,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 338 [2023-11-23 22:41:19,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:19,306 INFO L124 PetriNetUnfolderBase]: 15/488 cut-off events. [2023-11-23 22:41:19,306 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-23 22:41:19,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 488 events. 15/488 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1678 event pairs, 8 based on Foata normal form. 1/448 useless extension candidates. Maximal degree in co-relation 329. Up to 34 conditions per place. [2023-11-23 22:41:19,310 INFO L140 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2023-11-23 22:41:19,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 691 flow [2023-11-23 22:41:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-11-23 22:41:19,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9112426035502958 [2023-11-23 22:41:19,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-11-23 22:41:19,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-11-23 22:41:19,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:19,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-11-23 22:41:19,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,325 INFO L175 Difference]: Start difference. First operand has 316 places, 314 transitions, 655 flow. Second operand 3 states and 924 transitions. [2023-11-23 22:41:19,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 691 flow [2023-11-23 22:41:19,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 315 transitions, 671 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:19,334 INFO L231 Difference]: Finished difference. Result has 314 places, 315 transitions, 647 flow [2023-11-23 22:41:19,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=314, PETRI_TRANSITIONS=315} [2023-11-23 22:41:19,336 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -2 predicate places. [2023-11-23 22:41:19,337 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 315 transitions, 647 flow [2023-11-23 22:41:19,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:19,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:19,338 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] [2023-11-23 22:41:19,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:41:19,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:19,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:19,340 INFO L85 PathProgramCache]: Analyzing trace with hash 501668797, now seen corresponding path program 1 times [2023-11-23 22:41:19,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:19,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993850385] [2023-11-23 22:41:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:19,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:19,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:19,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993850385] [2023-11-23 22:41:19,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993850385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:19,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:19,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508506356] [2023-11-23 22:41:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:19,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:19,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:20,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 338 [2023-11-23 22:41:20,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 315 transitions, 647 flow. Second operand has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:20,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:20,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 338 [2023-11-23 22:41:20,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:20,824 INFO L124 PetriNetUnfolderBase]: 164/1053 cut-off events. [2023-11-23 22:41:20,824 INFO L125 PetriNetUnfolderBase]: For 12/16 co-relation queries the response was YES. [2023-11-23 22:41:20,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1053 events. 164/1053 cut-off events. For 12/16 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5751 event pairs, 144 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 1297. Up to 408 conditions per place. [2023-11-23 22:41:20,832 INFO L140 encePairwiseOnDemand]: 326/338 looper letters, 76 selfloop transitions, 10 changer transitions 0/313 dead transitions. [2023-11-23 22:41:20,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 313 transitions, 815 flow [2023-11-23 22:41:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1468 transitions. [2023-11-23 22:41:20,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7238658777120316 [2023-11-23 22:41:20,839 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1468 transitions. [2023-11-23 22:41:20,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1468 transitions. [2023-11-23 22:41:20,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:20,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1468 transitions. [2023-11-23 22:41:20,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:20,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:20,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:20,853 INFO L175 Difference]: Start difference. First operand has 314 places, 315 transitions, 647 flow. Second operand 6 states and 1468 transitions. [2023-11-23 22:41:20,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 313 transitions, 815 flow [2023-11-23 22:41:20,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 313 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:20,864 INFO L231 Difference]: Finished difference. Result has 316 places, 313 transitions, 661 flow [2023-11-23 22:41:20,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=661, PETRI_PLACES=316, PETRI_TRANSITIONS=313} [2023-11-23 22:41:20,866 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 0 predicate places. [2023-11-23 22:41:20,870 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 313 transitions, 661 flow [2023-11-23 22:41:20,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.33333333333334) internal successors, (1388), 6 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:20,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:20,872 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] [2023-11-23 22:41:20,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:41:20,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:20,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2052345165, now seen corresponding path program 1 times [2023-11-23 22:41:20,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:20,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052451843] [2023-11-23 22:41:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:20,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:20,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:20,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372974387] [2023-11-23 22:41:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:20,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:20,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:20,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:20,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:41:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:21,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:41:21,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:21,139 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 [2023-11-23 22:41:21,158 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 [2023-11-23 22:41:21,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:21,198 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 [2023-11-23 22:41:21,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:21,245 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 [2023-11-23 22:41:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:21,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:21,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:21,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052451843] [2023-11-23 22:41:21,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:21,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372974387] [2023-11-23 22:41:21,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372974387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:21,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:21,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:21,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436328553] [2023-11-23 22:41:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:21,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:21,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:21,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:21,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:21,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 338 [2023-11-23 22:41:21,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 313 transitions, 661 flow. Second operand has 6 states, 6 states have (on average 231.66666666666666) internal successors, (1390), 6 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:21,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:21,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 338 [2023-11-23 22:41:21,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:22,092 INFO L124 PetriNetUnfolderBase]: 164/1051 cut-off events. [2023-11-23 22:41:22,092 INFO L125 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2023-11-23 22:41:22,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 1051 events. 164/1051 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5746 event pairs, 144 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 1196. Up to 422 conditions per place. [2023-11-23 22:41:22,099 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 83 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2023-11-23 22:41:22,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 312 transitions, 835 flow [2023-11-23 22:41:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:22,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-23 22:41:22,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7214003944773175 [2023-11-23 22:41:22,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-23 22:41:22,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-23 22:41:22,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:22,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-23 22:41:22,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,120 INFO L175 Difference]: Start difference. First operand has 316 places, 313 transitions, 661 flow. Second operand 6 states and 1463 transitions. [2023-11-23 22:41:22,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 312 transitions, 835 flow [2023-11-23 22:41:22,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 312 transitions, 815 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:22,130 INFO L231 Difference]: Finished difference. Result has 315 places, 312 transitions, 649 flow [2023-11-23 22:41:22,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=315, PETRI_TRANSITIONS=312} [2023-11-23 22:41:22,132 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -1 predicate places. [2023-11-23 22:41:22,133 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 312 transitions, 649 flow [2023-11-23 22:41:22,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.66666666666666) internal successors, (1390), 6 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:22,138 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] [2023-11-23 22:41:22,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:22,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:22,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:22,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1661091340, now seen corresponding path program 1 times [2023-11-23 22:41:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:22,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486565664] [2023-11-23 22:41:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:22,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:22,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486565664] [2023-11-23 22:41:22,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486565664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:22,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:22,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:22,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630283830] [2023-11-23 22:41:22,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:22,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:22,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:22,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:22,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:22,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 338 [2023-11-23 22:41:22,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 312 transitions, 649 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:22,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 338 [2023-11-23 22:41:22,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:22,624 INFO L124 PetriNetUnfolderBase]: 15/672 cut-off events. [2023-11-23 22:41:22,625 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-23 22:41:22,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 672 events. 15/672 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1629 event pairs, 8 based on Foata normal form. 2/631 useless extension candidates. Maximal degree in co-relation 522. Up to 38 conditions per place. [2023-11-23 22:41:22,628 INFO L140 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/313 dead transitions. [2023-11-23 22:41:22,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 313 transitions, 685 flow [2023-11-23 22:41:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-11-23 22:41:22,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9112426035502958 [2023-11-23 22:41:22,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-11-23 22:41:22,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-11-23 22:41:22,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:22,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-11-23 22:41:22,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,640 INFO L175 Difference]: Start difference. First operand has 315 places, 312 transitions, 649 flow. Second operand 3 states and 924 transitions. [2023-11-23 22:41:22,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 313 transitions, 685 flow [2023-11-23 22:41:22,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 313 transitions, 675 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:22,650 INFO L231 Difference]: Finished difference. Result has 313 places, 313 transitions, 651 flow [2023-11-23 22:41:22,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=651, PETRI_PLACES=313, PETRI_TRANSITIONS=313} [2023-11-23 22:41:22,653 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -3 predicate places. [2023-11-23 22:41:22,653 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 313 transitions, 651 flow [2023-11-23 22:41:22,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:22,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:22,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:41:22,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:22,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1563279383, now seen corresponding path program 1 times [2023-11-23 22:41:22,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466953367] [2023-11-23 22:41:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:22,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251317692] [2023-11-23 22:41:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:22,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:22,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:22,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:41:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:22,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:41:22,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:22,890 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 [2023-11-23 22:41:22,901 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 [2023-11-23 22:41:22,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:22,928 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 [2023-11-23 22:41:22,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:22,966 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 [2023-11-23 22:41:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:22,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:22,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:22,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466953367] [2023-11-23 22:41:22,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251317692] [2023-11-23 22:41:22,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251317692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:22,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:22,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350165035] [2023-11-23 22:41:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:22,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:22,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:23,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 338 [2023-11-23 22:41:23,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 313 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:23,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 338 [2023-11-23 22:41:23,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:23,870 INFO L124 PetriNetUnfolderBase]: 7/644 cut-off events. [2023-11-23 22:41:23,870 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-23 22:41:23,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 644 events. 7/644 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1242 event pairs, 0 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 660. Up to 163 conditions per place. [2023-11-23 22:41:23,874 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 58 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2023-11-23 22:41:23,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 312 transitions, 775 flow [2023-11-23 22:41:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1588 transitions. [2023-11-23 22:41:23,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7830374753451677 [2023-11-23 22:41:23,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1588 transitions. [2023-11-23 22:41:23,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1588 transitions. [2023-11-23 22:41:23,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:23,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1588 transitions. [2023-11-23 22:41:23,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,894 INFO L175 Difference]: Start difference. First operand has 313 places, 313 transitions, 651 flow. Second operand 6 states and 1588 transitions. [2023-11-23 22:41:23,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 312 transitions, 775 flow [2023-11-23 22:41:23,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 312 transitions, 773 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:23,902 INFO L231 Difference]: Finished difference. Result has 316 places, 312 transitions, 657 flow [2023-11-23 22:41:23,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=316, PETRI_TRANSITIONS=312} [2023-11-23 22:41:23,904 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 0 predicate places. [2023-11-23 22:41:23,905 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 312 transitions, 657 flow [2023-11-23 22:41:23,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:23,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:23,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:24,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 22:41:24,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:24,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:24,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1727017727, now seen corresponding path program 1 times [2023-11-23 22:41:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857274597] [2023-11-23 22:41:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:24,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:24,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018449593] [2023-11-23 22:41:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:24,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:24,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:24,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:41:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:24,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:41:24,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:24,394 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 [2023-11-23 22:41:24,406 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 [2023-11-23 22:41:24,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:24,429 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 [2023-11-23 22:41:24,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:24,462 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 [2023-11-23 22:41:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:24,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:24,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857274597] [2023-11-23 22:41:24,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:24,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018449593] [2023-11-23 22:41:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018449593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861886280] [2023-11-23 22:41:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:24,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 338 [2023-11-23 22:41:24,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 234.33333333333334) internal successors, (1406), 6 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:24,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:24,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 338 [2023-11-23 22:41:24,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:25,427 INFO L124 PetriNetUnfolderBase]: 164/1233 cut-off events. [2023-11-23 22:41:25,428 INFO L125 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2023-11-23 22:41:25,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1233 events. 164/1233 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5704 event pairs, 144 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1341. Up to 488 conditions per place. [2023-11-23 22:41:25,437 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 83 selfloop transitions, 5 changer transitions 0/311 dead transitions. [2023-11-23 22:41:25,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 311 transitions, 831 flow [2023-11-23 22:41:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-23 22:41:25,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7214003944773175 [2023-11-23 22:41:25,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-23 22:41:25,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-23 22:41:25,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:25,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-23 22:41:25,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,457 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,457 INFO L175 Difference]: Start difference. First operand has 316 places, 312 transitions, 657 flow. Second operand 6 states and 1463 transitions. [2023-11-23 22:41:25,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 311 transitions, 831 flow [2023-11-23 22:41:25,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 311 transitions, 821 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:25,466 INFO L231 Difference]: Finished difference. Result has 315 places, 311 transitions, 655 flow [2023-11-23 22:41:25,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=315, PETRI_TRANSITIONS=311} [2023-11-23 22:41:25,468 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -1 predicate places. [2023-11-23 22:41:25,468 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 311 transitions, 655 flow [2023-11-23 22:41:25,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.33333333333334) internal successors, (1406), 6 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:25,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:25,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:25,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 22:41:25,687 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:25,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash 77252462, now seen corresponding path program 1 times [2023-11-23 22:41:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:25,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686497338] [2023-11-23 22:41:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:25,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:25,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:25,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451867393] [2023-11-23 22:41:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:25,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:25,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:25,727 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:25,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:41:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:25,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 22:41:25,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:26,094 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 [2023-11-23 22:41:26,130 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 [2023-11-23 22:41:26,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:26,167 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 [2023-11-23 22:41:26,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:26,212 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 [2023-11-23 22:41:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:26,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:26,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:26,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686497338] [2023-11-23 22:41:26,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:26,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451867393] [2023-11-23 22:41:26,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451867393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:26,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:26,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 22:41:26,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748331758] [2023-11-23 22:41:26,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:26,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 22:41:26,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 22:41:26,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:41:27,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 338 [2023-11-23 22:41:27,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 311 transitions, 655 flow. Second operand has 13 states, 13 states have (on average 219.92307692307693) internal successors, (2859), 13 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:27,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:27,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 338 [2023-11-23 22:41:27,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:28,047 INFO L124 PetriNetUnfolderBase]: 203/1378 cut-off events. [2023-11-23 22:41:28,047 INFO L125 PetriNetUnfolderBase]: For 16/21 co-relation queries the response was YES. [2023-11-23 22:41:28,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1378 events. 203/1378 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7614 event pairs, 180 based on Foata normal form. 0/1290 useless extension candidates. Maximal degree in co-relation 1607. Up to 428 conditions per place. [2023-11-23 22:41:28,056 INFO L140 encePairwiseOnDemand]: 318/338 looper letters, 93 selfloop transitions, 19 changer transitions 0/321 dead transitions. [2023-11-23 22:41:28,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 321 transitions, 899 flow [2023-11-23 22:41:28,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 22:41:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-23 22:41:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3569 transitions. [2023-11-23 22:41:28,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.659948224852071 [2023-11-23 22:41:28,070 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3569 transitions. [2023-11-23 22:41:28,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3569 transitions. [2023-11-23 22:41:28,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:28,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3569 transitions. [2023-11-23 22:41:28,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 223.0625) internal successors, (3569), 16 states have internal predecessors, (3569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,109 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,109 INFO L175 Difference]: Start difference. First operand has 315 places, 311 transitions, 655 flow. Second operand 16 states and 3569 transitions. [2023-11-23 22:41:28,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 321 transitions, 899 flow [2023-11-23 22:41:28,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 321 transitions, 889 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:28,126 INFO L231 Difference]: Finished difference. Result has 325 places, 311 transitions, 687 flow [2023-11-23 22:41:28,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=687, PETRI_PLACES=325, PETRI_TRANSITIONS=311} [2023-11-23 22:41:28,129 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 9 predicate places. [2023-11-23 22:41:28,130 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 311 transitions, 687 flow [2023-11-23 22:41:28,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 219.92307692307693) internal successors, (2859), 13 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:28,132 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] [2023-11-23 22:41:28,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:28,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:28,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:28,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1933057519, now seen corresponding path program 1 times [2023-11-23 22:41:28,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:28,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833852243] [2023-11-23 22:41:28,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:28,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:28,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:28,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592143063] [2023-11-23 22:41:28,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:28,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:28,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:28,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:28,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:41:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:28,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 22:41:28,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:28,780 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 [2023-11-23 22:41:28,800 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 [2023-11-23 22:41:28,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:28,831 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 [2023-11-23 22:41:28,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:28,872 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 [2023-11-23 22:41:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:28,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:28,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:28,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833852243] [2023-11-23 22:41:28,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:28,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592143063] [2023-11-23 22:41:28,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592143063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:28,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:28,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 22:41:28,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362840036] [2023-11-23 22:41:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:28,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 22:41:28,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 22:41:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:41:30,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 338 [2023-11-23 22:41:30,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 311 transitions, 687 flow. Second operand has 13 states, 13 states have (on average 219.92307692307693) internal successors, (2859), 13 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:30,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:30,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 338 [2023-11-23 22:41:30,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:30,694 INFO L124 PetriNetUnfolderBase]: 203/1374 cut-off events. [2023-11-23 22:41:30,694 INFO L125 PetriNetUnfolderBase]: For 36/41 co-relation queries the response was YES. [2023-11-23 22:41:30,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 1374 events. 203/1374 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7613 event pairs, 180 based on Foata normal form. 0/1290 useless extension candidates. Maximal degree in co-relation 1400. Up to 428 conditions per place. [2023-11-23 22:41:30,703 INFO L140 encePairwiseOnDemand]: 318/338 looper letters, 93 selfloop transitions, 19 changer transitions 0/320 dead transitions. [2023-11-23 22:41:30,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 320 transitions, 929 flow [2023-11-23 22:41:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 22:41:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-23 22:41:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3569 transitions. [2023-11-23 22:41:30,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.659948224852071 [2023-11-23 22:41:30,716 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3569 transitions. [2023-11-23 22:41:30,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3569 transitions. [2023-11-23 22:41:30,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:30,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3569 transitions. [2023-11-23 22:41:30,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 223.0625) internal successors, (3569), 16 states have internal predecessors, (3569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:30,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:30,741 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:30,741 INFO L175 Difference]: Start difference. First operand has 325 places, 311 transitions, 687 flow. Second operand 16 states and 3569 transitions. [2023-11-23 22:41:30,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 320 transitions, 929 flow [2023-11-23 22:41:30,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 320 transitions, 893 flow, removed 0 selfloop flow, removed 14 redundant places. [2023-11-23 22:41:30,753 INFO L231 Difference]: Finished difference. Result has 325 places, 310 transitions, 687 flow [2023-11-23 22:41:30,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=687, PETRI_PLACES=325, PETRI_TRANSITIONS=310} [2023-11-23 22:41:30,756 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 9 predicate places. [2023-11-23 22:41:30,756 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 310 transitions, 687 flow [2023-11-23 22:41:30,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 219.92307692307693) internal successors, (2859), 13 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:30,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:30,757 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] [2023-11-23 22:41:30,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:30,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:30,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:30,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1863592445, now seen corresponding path program 1 times [2023-11-23 22:41:30,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:30,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795201801] [2023-11-23 22:41:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:30,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:31,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:31,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554892008] [2023-11-23 22:41:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:31,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:31,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:31,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:41:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:31,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:41:31,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:31,290 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 [2023-11-23 22:41:31,299 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 [2023-11-23 22:41:31,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:31,320 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 [2023-11-23 22:41:31,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:41:31,347 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 [2023-11-23 22:41:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:31,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:31,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795201801] [2023-11-23 22:41:31,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:31,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554892008] [2023-11-23 22:41:31,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554892008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:31,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:31,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:31,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695313101] [2023-11-23 22:41:31,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:31,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:31,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:31,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:31,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 338 [2023-11-23 22:41:31,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 310 transitions, 687 flow. Second operand has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:31,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 338 [2023-11-23 22:41:31,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:32,247 INFO L124 PetriNetUnfolderBase]: 164/1221 cut-off events. [2023-11-23 22:41:32,247 INFO L125 PetriNetUnfolderBase]: For 18/22 co-relation queries the response was YES. [2023-11-23 22:41:32,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 1221 events. 164/1221 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5677 event pairs, 144 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1174. Up to 492 conditions per place. [2023-11-23 22:41:32,255 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 84 selfloop transitions, 5 changer transitions 0/309 dead transitions. [2023-11-23 22:41:32,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 309 transitions, 863 flow [2023-11-23 22:41:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:41:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:41:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1458 transitions. [2023-11-23 22:41:32,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7189349112426036 [2023-11-23 22:41:32,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1458 transitions. [2023-11-23 22:41:32,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1458 transitions. [2023-11-23 22:41:32,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:32,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1458 transitions. [2023-11-23 22:41:32,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,272 INFO L175 Difference]: Start difference. First operand has 325 places, 310 transitions, 687 flow. Second operand 6 states and 1458 transitions. [2023-11-23 22:41:32,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 309 transitions, 863 flow [2023-11-23 22:41:32,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 309 transitions, 825 flow, removed 0 selfloop flow, removed 15 redundant places. [2023-11-23 22:41:32,280 INFO L231 Difference]: Finished difference. Result has 314 places, 309 transitions, 657 flow [2023-11-23 22:41:32,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=314, PETRI_TRANSITIONS=309} [2023-11-23 22:41:32,284 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -2 predicate places. [2023-11-23 22:41:32,284 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 309 transitions, 657 flow [2023-11-23 22:41:32,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:32,285 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] [2023-11-23 22:41:32,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:32,500 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:32,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 812004453, now seen corresponding path program 1 times [2023-11-23 22:41:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557473979] [2023-11-23 22:41:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:32,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:32,549 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:32,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491893163] [2023-11-23 22:41:32,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:32,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:32,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:32,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:32,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:41:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:32,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:41:32,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:41:32,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:41:32,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:32,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557473979] [2023-11-23 22:41:32,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:32,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491893163] [2023-11-23 22:41:32,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491893163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:32,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:32,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:41:32,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282873880] [2023-11-23 22:41:32,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:32,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:32,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:32,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 338 [2023-11-23 22:41:32,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 309 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:32,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 338 [2023-11-23 22:41:32,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:33,040 INFO L124 PetriNetUnfolderBase]: 38/865 cut-off events. [2023-11-23 22:41:33,040 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-23 22:41:33,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 996 conditions, 865 events. 38/865 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3217 event pairs, 0 based on Foata normal form. 2/817 useless extension candidates. Maximal degree in co-relation 710. Up to 72 conditions per place. [2023-11-23 22:41:33,046 INFO L140 encePairwiseOnDemand]: 335/338 looper letters, 22 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-23 22:41:33,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 317 transitions, 721 flow [2023-11-23 22:41:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2023-11-23 22:41:33,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9181459566074951 [2023-11-23 22:41:33,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2023-11-23 22:41:33,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2023-11-23 22:41:33,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:33,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2023-11-23 22:41:33,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,059 INFO L175 Difference]: Start difference. First operand has 314 places, 309 transitions, 657 flow. Second operand 3 states and 931 transitions. [2023-11-23 22:41:33,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 317 transitions, 721 flow [2023-11-23 22:41:33,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 317 transitions, 711 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:41:33,067 INFO L231 Difference]: Finished difference. Result has 312 places, 309 transitions, 655 flow [2023-11-23 22:41:33,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=312, PETRI_TRANSITIONS=309} [2023-11-23 22:41:33,068 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -4 predicate places. [2023-11-23 22:41:33,069 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 309 transitions, 655 flow [2023-11-23 22:41:33,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:33,070 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:33,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:33,292 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:33,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:33,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1556675700, now seen corresponding path program 1 times [2023-11-23 22:41:33,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:33,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477058502] [2023-11-23 22:41:33,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:33,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:33,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:33,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679103261] [2023-11-23 22:41:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:33,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:33,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:33,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:33,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:41:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:33,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:33,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:41:33,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:41:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:41:33,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477058502] [2023-11-23 22:41:33,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679103261] [2023-11-23 22:41:33,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679103261] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:41:33,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:41:33,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 22:41:33,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563527019] [2023-11-23 22:41:33,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:41:33,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:41:33,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:33,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:41:33,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:41:33,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 338 [2023-11-23 22:41:33,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 309 transitions, 655 flow. Second operand has 8 states, 8 states have (on average 300.875) internal successors, (2407), 8 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:33,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 338 [2023-11-23 22:41:33,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:34,251 INFO L124 PetriNetUnfolderBase]: 14/835 cut-off events. [2023-11-23 22:41:34,252 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2023-11-23 22:41:34,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 835 events. 14/835 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1094 event pairs, 8 based on Foata normal form. 4/819 useless extension candidates. Maximal degree in co-relation 693. Up to 38 conditions per place. [2023-11-23 22:41:34,256 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 19 selfloop transitions, 9 changer transitions 0/317 dead transitions. [2023-11-23 22:41:34,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 317 transitions, 729 flow [2023-11-23 22:41:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:41:34,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-23 22:41:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2721 transitions. [2023-11-23 22:41:34,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8944773175542406 [2023-11-23 22:41:34,266 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2721 transitions. [2023-11-23 22:41:34,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2721 transitions. [2023-11-23 22:41:34,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:34,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2721 transitions. [2023-11-23 22:41:34,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 302.3333333333333) internal successors, (2721), 9 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,284 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,285 INFO L175 Difference]: Start difference. First operand has 312 places, 309 transitions, 655 flow. Second operand 9 states and 2721 transitions. [2023-11-23 22:41:34,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 317 transitions, 729 flow [2023-11-23 22:41:34,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 317 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:34,292 INFO L231 Difference]: Finished difference. Result has 321 places, 315 transitions, 701 flow [2023-11-23 22:41:34,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=701, PETRI_PLACES=321, PETRI_TRANSITIONS=315} [2023-11-23 22:41:34,294 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 5 predicate places. [2023-11-23 22:41:34,294 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 315 transitions, 701 flow [2023-11-23 22:41:34,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 300.875) internal successors, (2407), 8 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:34,296 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, 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] [2023-11-23 22:41:34,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:34,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:41:34,518 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:34,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -181500460, now seen corresponding path program 2 times [2023-11-23 22:41:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906754288] [2023-11-23 22:41:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:34,610 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:34,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834416704] [2023-11-23 22:41:34,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:41:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:34,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:34,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:34,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:41:35,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:41:35,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:41:35,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:41:35,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:41:35,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:41:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:41:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906754288] [2023-11-23 22:41:35,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834416704] [2023-11-23 22:41:35,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834416704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:41:35,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:41:35,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-23 22:41:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002738237] [2023-11-23 22:41:35,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:41:35,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 22:41:35,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:35,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 22:41:35,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:41:35,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 338 [2023-11-23 22:41:35,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 315 transitions, 701 flow. Second operand has 16 states, 16 states have (on average 300.9375) internal successors, (4815), 16 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:35,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:35,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 338 [2023-11-23 22:41:35,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:36,752 INFO L124 PetriNetUnfolderBase]: 14/1563 cut-off events. [2023-11-23 22:41:36,753 INFO L125 PetriNetUnfolderBase]: For 65/66 co-relation queries the response was YES. [2023-11-23 22:41:36,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 1563 events. 14/1563 cut-off events. For 65/66 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1092 event pairs, 8 based on Foata normal form. 8/1551 useless extension candidates. Maximal degree in co-relation 1564. Up to 38 conditions per place. [2023-11-23 22:41:36,759 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 23 selfloop transitions, 21 changer transitions 0/333 dead transitions. [2023-11-23 22:41:36,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 333 transitions, 885 flow [2023-11-23 22:41:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 22:41:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-23 22:41:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6327 transitions. [2023-11-23 22:41:36,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8913778529163144 [2023-11-23 22:41:36,779 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6327 transitions. [2023-11-23 22:41:36,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6327 transitions. [2023-11-23 22:41:36,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:36,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6327 transitions. [2023-11-23 22:41:36,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 301.2857142857143) internal successors, (6327), 21 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 338.0) internal successors, (7436), 22 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,820 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 338.0) internal successors, (7436), 22 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,820 INFO L175 Difference]: Start difference. First operand has 321 places, 315 transitions, 701 flow. Second operand 21 states and 6327 transitions. [2023-11-23 22:41:36,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 333 transitions, 885 flow [2023-11-23 22:41:36,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 333 transitions, 871 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:36,829 INFO L231 Difference]: Finished difference. Result has 345 places, 328 transitions, 825 flow [2023-11-23 22:41:36,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=825, PETRI_PLACES=345, PETRI_TRANSITIONS=328} [2023-11-23 22:41:36,832 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 29 predicate places. [2023-11-23 22:41:36,832 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 328 transitions, 825 flow [2023-11-23 22:41:36,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 300.9375) internal successors, (4815), 16 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:36,834 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] [2023-11-23 22:41:36,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:37,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 22:41:37,058 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:37,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash 108740756, now seen corresponding path program 3 times [2023-11-23 22:41:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793274058] [2023-11-23 22:41:37,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:37,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:37,201 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:37,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059322705] [2023-11-23 22:41:37,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:41:37,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:37,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:37,202 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:37,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:41:37,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 22:41:37,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:41:37,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:41:37,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-11-23 22:41:38,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:41:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-11-23 22:41:39,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:39,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793274058] [2023-11-23 22:41:39,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:39,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059322705] [2023-11-23 22:41:39,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059322705] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:41:39,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:41:39,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 22:41:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173346528] [2023-11-23 22:41:39,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:41:39,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:41:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:39,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:41:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:41:39,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 338 [2023-11-23 22:41:39,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 328 transitions, 825 flow. Second operand has 8 states, 8 states have (on average 300.875) internal successors, (2407), 8 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:39,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:39,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 338 [2023-11-23 22:41:39,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:41,322 INFO L124 PetriNetUnfolderBase]: 15/2232 cut-off events. [2023-11-23 22:41:41,322 INFO L125 PetriNetUnfolderBase]: For 116/117 co-relation queries the response was YES. [2023-11-23 22:41:41,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 2232 events. 15/2232 cut-off events. For 116/117 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 637 event pairs, 8 based on Foata normal form. 2/2214 useless extension candidates. Maximal degree in co-relation 2343. Up to 34 conditions per place. [2023-11-23 22:41:41,331 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 19 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2023-11-23 22:41:41,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 336 transitions, 899 flow [2023-11-23 22:41:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:41:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-23 22:41:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2721 transitions. [2023-11-23 22:41:41,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8944773175542406 [2023-11-23 22:41:41,336 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2721 transitions. [2023-11-23 22:41:41,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2721 transitions. [2023-11-23 22:41:41,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:41,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2721 transitions. [2023-11-23 22:41:41,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 302.3333333333333) internal successors, (2721), 9 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:41,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:41,350 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:41,350 INFO L175 Difference]: Start difference. First operand has 345 places, 328 transitions, 825 flow. Second operand 9 states and 2721 transitions. [2023-11-23 22:41:41,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 336 transitions, 899 flow [2023-11-23 22:41:41,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 336 transitions, 875 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-23 22:41:41,360 INFO L231 Difference]: Finished difference. Result has 350 places, 334 transitions, 851 flow [2023-11-23 22:41:41,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=851, PETRI_PLACES=350, PETRI_TRANSITIONS=334} [2023-11-23 22:41:41,361 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 34 predicate places. [2023-11-23 22:41:41,362 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 334 transitions, 851 flow [2023-11-23 22:41:41,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 300.875) internal successors, (2407), 8 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:41,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:41,365 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 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] [2023-11-23 22:41:41,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:41:41,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:41:41,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:41,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:41,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2138692922, now seen corresponding path program 4 times [2023-11-23 22:41:41,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:41,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404516759] [2023-11-23 22:41:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:41,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:42,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:42,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839703032] [2023-11-23 22:41:42,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 22:41:42,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:42,062 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:42,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:41:44,331 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 22:41:44,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:41:44,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 7849 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:41:44,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:41:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 19268 backedges. 0 proven. 13509 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2023-11-23 22:41:46,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:41:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 19268 backedges. 0 proven. 13509 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2023-11-23 22:41:49,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:49,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404516759] [2023-11-23 22:41:49,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:41:49,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839703032] [2023-11-23 22:41:49,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839703032] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:41:49,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:41:49,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-23 22:41:49,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419985406] [2023-11-23 22:41:49,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:41:49,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 22:41:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 22:41:49,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:41:49,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 338 [2023-11-23 22:41:49,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 334 transitions, 851 flow. Second operand has 16 states, 16 states have (on average 300.9375) internal successors, (4815), 16 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:49,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:49,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 338 [2023-11-23 22:41:49,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:53,341 INFO L124 PetriNetUnfolderBase]: 19/4900 cut-off events. [2023-11-23 22:41:53,342 INFO L125 PetriNetUnfolderBase]: For 348/349 co-relation queries the response was YES. [2023-11-23 22:41:53,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5632 conditions, 4900 events. 19/4900 cut-off events. For 348/349 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 641 event pairs, 8 based on Foata normal form. 4/4884 useless extension candidates. Maximal degree in co-relation 5379. Up to 70 conditions per place. [2023-11-23 22:41:53,356 INFO L140 encePairwiseOnDemand]: 332/338 looper letters, 23 selfloop transitions, 21 changer transitions 0/352 dead transitions. [2023-11-23 22:41:53,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 352 transitions, 1035 flow [2023-11-23 22:41:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 22:41:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-23 22:41:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6327 transitions. [2023-11-23 22:41:53,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8913778529163144 [2023-11-23 22:41:53,365 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6327 transitions. [2023-11-23 22:41:53,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6327 transitions. [2023-11-23 22:41:53,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:53,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6327 transitions. [2023-11-23 22:41:53,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 301.2857142857143) internal successors, (6327), 21 states have internal predecessors, (6327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:53,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 338.0) internal successors, (7436), 22 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:53,390 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 338.0) internal successors, (7436), 22 states have internal predecessors, (7436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:53,390 INFO L175 Difference]: Start difference. First operand has 350 places, 334 transitions, 851 flow. Second operand 21 states and 6327 transitions. [2023-11-23 22:41:53,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 352 transitions, 1035 flow [2023-11-23 22:41:53,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 352 transitions, 1021 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-23 22:41:53,401 INFO L231 Difference]: Finished difference. Result has 374 places, 347 transitions, 975 flow [2023-11-23 22:41:53,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=975, PETRI_PLACES=374, PETRI_TRANSITIONS=347} [2023-11-23 22:41:53,402 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, 58 predicate places. [2023-11-23 22:41:53,403 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 347 transitions, 975 flow [2023-11-23 22:41:53,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 300.9375) internal successors, (4815), 16 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:53,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:53,406 INFO L208 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 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] [2023-11-23 22:41:53,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-23 22:41:53,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:41:53,632 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-23 22:41:53,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:53,633 INFO L85 PathProgramCache]: Analyzing trace with hash 900505990, now seen corresponding path program 5 times [2023-11-23 22:41:53,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338602953] [2023-11-23 22:41:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:53,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:54,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:41:54,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276558685] [2023-11-23 22:41:54,669 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 22:41:54,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:41:54,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:41:54,671 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:41:54,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeff727b-7d4f-4bbb-a929-0dc4ffdc5bed/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process