./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu --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 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:02,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:02,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:48:02,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:02,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:02,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:02,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:02,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:02,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:02,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:02,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:02,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:02,656 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:02,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:02,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:02,659 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:48:02,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:02,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:48:02,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:02,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:02,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:02,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:02,679 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:48:02,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:02,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:48:02,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:02,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:02,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:02,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:02,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:02,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:02,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:02,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:02,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:02,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:02,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:02,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:02,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:02,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:02,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:02,689 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:02,690 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_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 [2023-11-19 07:48:03,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:03,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:03,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:03,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:03,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:03,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2023-11-19 07:48:06,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:07,158 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:07,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2023-11-19 07:48:07,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/data/648a7ab26/6fa4e785e7804abfb0cffe039fa23d10/FLAGc1a24f5d5 [2023-11-19 07:48:07,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/data/648a7ab26/6fa4e785e7804abfb0cffe039fa23d10 [2023-11-19 07:48:07,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:07,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:07,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:07,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:07,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:07,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:07" (1/1) ... [2023-11-19 07:48:07,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e83853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:07, skipping insertion in model container [2023-11-19 07:48:07,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:07" (1/1) ... [2023-11-19 07:48:07,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:08,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:08,234 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:08,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:08,436 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:08,437 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:08,446 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:08,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08 WrapperNode [2023-11-19 07:48:08,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:08,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:08,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:08,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:08,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,557 INFO L138 Inliner]: procedures = 481, calls = 75, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 476 [2023-11-19 07:48:08,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:08,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:08,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:08,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:08,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:08,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:08,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:08,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:08,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:08,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:08,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:08,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:48:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:48:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:48:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:48:08,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:48:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:08,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:48:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:08,821 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:48:09,234 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:09,236 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:10,285 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:10,742 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:10,743 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 07:48:10,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10 BoogieIcfgContainer [2023-11-19 07:48:10,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:10,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:10,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:10,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:10,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:07" (1/3) ... [2023-11-19 07:48:10,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8ece86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2023-11-19 07:48:10,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08" (2/3) ... [2023-11-19 07:48:10,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8ece86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:10, skipping insertion in model container [2023-11-19 07:48:10,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:10" (3/3) ... [2023-11-19 07:48:10,773 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-11-19 07:48:10,785 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:48:10,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:10,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-19 07:48:10,799 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:48:11,016 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:48:11,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,330 INFO L124 PetriNetUnfolderBase]: 22/377 cut-off events. [2023-11-19 07:48:11,330 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:48:11,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 377 events. 22/377 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 740 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 279. Up to 4 conditions per place. [2023-11-19 07:48:11,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,381 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:11,399 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 339 places, 356 transitions, 719 flow [2023-11-19 07:48:11,532 INFO L124 PetriNetUnfolderBase]: 22/377 cut-off events. [2023-11-19 07:48:11,533 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:48:11,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 377 events. 22/377 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 740 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 279. Up to 4 conditions per place. [2023-11-19 07:48:11,551 INFO L119 LiptonReduction]: Number of co-enabled transitions 13662 [2023-11-19 07:49:00,409 INFO L134 LiptonReduction]: Checked pairs total: 36794 [2023-11-19 07:49:00,409 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-11-19 07:49:00,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:00,437 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;@7e0df2f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:00,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-19 07:49:00,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:49:00,440 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:49:00,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:49:00,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:49:00,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:49:00,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:49:00,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1886, now seen corresponding path program 1 times [2023-11-19 07:49:00,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925206874] [2023-11-19 07:49:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:00,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:00,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925206874] [2023-11-19 07:49:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925206874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:00,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:00,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:49:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755056027] [2023-11-19 07:49:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:00,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:49:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:00,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:00,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 698 [2023-11-19 07:49:00,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 109 transitions, 225 flow. Second operand has 2 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:00,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:49:00,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 698 [2023-11-19 07:49:00,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:49:01,093 INFO L124 PetriNetUnfolderBase]: 153/503 cut-off events. [2023-11-19 07:49:01,094 INFO L125 PetriNetUnfolderBase]: For 8/13 co-relation queries the response was YES. [2023-11-19 07:49:01,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 503 events. 153/503 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2075 event pairs, 115 based on Foata normal form. 18/420 useless extension candidates. Maximal degree in co-relation 780. Up to 305 conditions per place. [2023-11-19 07:49:01,099 INFO L140 encePairwiseOnDemand]: 668/698 looper letters, 40 selfloop transitions, 0 changer transitions 0/78 dead transitions. [2023-11-19 07:49:01,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 243 flow [2023-11-19 07:49:01,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:49:01,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 680 transitions. [2023-11-19 07:49:01,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4871060171919771 [2023-11-19 07:49:01,121 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 680 transitions. [2023-11-19 07:49:01,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 680 transitions. [2023-11-19 07:49:01,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:01,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 680 transitions. [2023-11-19 07:49:01,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,143 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,145 INFO L175 Difference]: Start difference. First operand has 99 places, 109 transitions, 225 flow. Second operand 2 states and 680 transitions. [2023-11-19 07:49:01,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 243 flow [2023-11-19 07:49:01,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:49:01,152 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 163 flow [2023-11-19 07:49:01,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2023-11-19 07:49:01,158 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2023-11-19 07:49:01,158 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 163 flow [2023-11-19 07:49:01,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:49:01,160 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 07:49:01,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:01,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:49:01,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:01,161 INFO L85 PathProgramCache]: Analyzing trace with hash 263491625, now seen corresponding path program 1 times [2023-11-19 07:49:01,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:01,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084081679] [2023-11-19 07:49:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:01,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:01,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:01,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084081679] [2023-11-19 07:49:01,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084081679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:01,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:01,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440804283] [2023-11-19 07:49:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:01,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:01,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:01,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:01,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 698 [2023-11-19 07:49:01,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:49:01,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 698 [2023-11-19 07:49:01,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:49:01,928 INFO L124 PetriNetUnfolderBase]: 153/504 cut-off events. [2023-11-19 07:49:01,929 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-11-19 07:49:01,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 504 events. 153/504 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2075 event pairs, 115 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 812. Up to 305 conditions per place. [2023-11-19 07:49:01,933 INFO L140 encePairwiseOnDemand]: 695/698 looper letters, 39 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-11-19 07:49:01,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 79 transitions, 247 flow [2023-11-19 07:49:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:49:01,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 939 transitions. [2023-11-19 07:49:01,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484240687679083 [2023-11-19 07:49:01,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 939 transitions. [2023-11-19 07:49:01,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 939 transitions. [2023-11-19 07:49:01,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:01,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 939 transitions. [2023-11-19 07:49:01,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,953 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,953 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 163 flow. Second operand 3 states and 939 transitions. [2023-11-19 07:49:01,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 79 transitions, 247 flow [2023-11-19 07:49:01,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:49:01,957 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 175 flow [2023-11-19 07:49:01,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2023-11-19 07:49:01,959 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2023-11-19 07:49:01,959 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 175 flow [2023-11-19 07:49:01,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:01,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:49:01,960 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:01,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:01,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:49:01,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1315654211, now seen corresponding path program 1 times [2023-11-19 07:49:01,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:01,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145623846] [2023-11-19 07:49:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:01,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:02,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:02,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145623846] [2023-11-19 07:49:02,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145623846] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:02,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133057724] [2023-11-19 07:49:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:02,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:02,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:02,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:02,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:49:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:02,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:49:02,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:02,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:49:02,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133057724] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:02,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:49:02,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:49:02,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162070813] [2023-11-19 07:49:02,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:02,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:49:02,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:02,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:49:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:49:02,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 698 [2023-11-19 07:49:02,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 298.57142857142856) internal successors, (2090), 7 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:02,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:49:02,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 698 [2023-11-19 07:49:02,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:49:02,942 INFO L124 PetriNetUnfolderBase]: 153/505 cut-off events. [2023-11-19 07:49:02,942 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-11-19 07:49:02,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 505 events. 153/505 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2075 event pairs, 115 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 820. Up to 305 conditions per place. [2023-11-19 07:49:02,946 INFO L140 encePairwiseOnDemand]: 695/698 looper letters, 39 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-11-19 07:49:02,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 80 transitions, 263 flow [2023-11-19 07:49:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:49:02,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:49:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1231 transitions. [2023-11-19 07:49:02,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4409025787965616 [2023-11-19 07:49:02,953 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1231 transitions. [2023-11-19 07:49:02,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1231 transitions. [2023-11-19 07:49:02,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:02,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1231 transitions. [2023-11-19 07:49:02,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 307.75) internal successors, (1231), 4 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:02,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 698.0) internal successors, (3490), 5 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:02,970 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 698.0) internal successors, (3490), 5 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:02,970 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 175 flow. Second operand 4 states and 1231 transitions. [2023-11-19 07:49:02,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 80 transitions, 263 flow [2023-11-19 07:49:02,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 259 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:49:02,975 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 187 flow [2023-11-19 07:49:02,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2023-11-19 07:49:02,977 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2023-11-19 07:49:02,977 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 187 flow [2023-11-19 07:49:02,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 298.57142857142856) internal successors, (2090), 7 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:02,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:49:02,980 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:49:03,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:03,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83bbf044-012a-4e1c-8ff0-b46524e35872/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:03,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:49:03,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:03,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1270432425, now seen corresponding path program 2 times [2023-11-19 07:49:03,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:03,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152298717] [2023-11-19 07:49:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:03,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:03,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:03,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:03,333 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:49:03,336 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2023-11-19 07:49:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-19 07:49:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-19 07:49:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-19 07:49:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-19 07:49:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-19 07:49:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-19 07:49:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-19 07:49:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-19 07:49:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-19 07:49:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-19 07:49:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-19 07:49:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-19 07:49:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-19 07:49:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-19 07:49:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-19 07:49:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-19 07:49:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-19 07:49:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-19 07:49:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-19 07:49:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-19 07:49:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-19 07:49:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-19 07:49:03,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-19 07:49:03,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-19 07:49:03,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-19 07:49:03,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-19 07:49:03,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-19 07:49:03,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-19 07:49:03,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-19 07:49:03,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-19 07:49:03,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-19 07:49:03,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-19 07:49:03,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-19 07:49:03,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-19 07:49:03,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-19 07:49:03,352 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-11-19 07:49:03,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-11-19 07:49:03,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-19 07:49:03,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-19 07:49:03,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-19 07:49:03,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-19 07:49:03,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-19 07:49:03,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-19 07:49:03,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-19 07:49:03,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-19 07:49:03,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-19 07:49:03,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-19 07:49:03,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-19 07:49:03,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-19 07:49:03,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-19 07:49:03,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-19 07:49:03,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-19 07:49:03,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-19 07:49:03,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-19 07:49:03,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-19 07:49:03,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-19 07:49:03,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-19 07:49:03,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-19 07:49:03,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-19 07:49:03,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:49:03,376 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-19 07:49:03,379 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:49:03,379 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:49:03,545 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:49:03,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:03,861 INFO L124 PetriNetUnfolderBase]: 42/682 cut-off events. [2023-11-19 07:49:03,861 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:49:03,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 682 events. 42/682 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2496 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 552. Up to 8 conditions per place. [2023-11-19 07:49:03,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:03,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:03,902 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:49:03,903 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:03,903 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:03,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 580 places, 611 transitions, 1238 flow [2023-11-19 07:49:04,184 INFO L124 PetriNetUnfolderBase]: 42/682 cut-off events. [2023-11-19 07:49:04,185 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:49:04,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 682 events. 42/682 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2496 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 552. Up to 8 conditions per place. [2023-11-19 07:49:04,268 INFO L119 LiptonReduction]: Number of co-enabled transitions 160908