./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack-2.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_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/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_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/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_1db92ad2-b351-47e5-b2e4-6501e82dd728/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 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:27,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:27,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:37:27,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:27,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:27,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:27,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:27,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:27,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:27,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:27,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:27,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:27,809 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:27,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:27,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:27,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:27,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:27,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:27,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:27,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:27,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:27,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:27,815 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:37:27,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:27,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:27,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:27,818 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:27,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:27,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:27,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:27,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:27,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:27,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:27,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:27,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:27,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:27,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:27,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:27,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:27,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:27,838 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:27,841 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_1db92ad2-b351-47e5-b2e4-6501e82dd728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 [2023-11-19 07:37:28,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:28,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:28,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:28,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:28,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:28,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/stack-2.i [2023-11-19 07:37:31,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:31,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:31,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/sv-benchmarks/c/pthread/stack-2.i [2023-11-19 07:37:31,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/data/4d264a870/76ad290fa8c14e09bb6f8afbbae2bf4f/FLAGb87e1fc76 [2023-11-19 07:37:31,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/data/4d264a870/76ad290fa8c14e09bb6f8afbbae2bf4f [2023-11-19 07:37:31,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:31,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:31,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:31,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:31,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:31,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:31" (1/1) ... [2023-11-19 07:37:31,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35803544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:31, skipping insertion in model container [2023-11-19 07:37:31,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:31" (1/1) ... [2023-11-19 07:37:31,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:32,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:32,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:32,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:32,824 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:32,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32 WrapperNode [2023-11-19 07:37:32,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:32,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:32,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:32,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:32,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,934 INFO L138 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 213 [2023-11-19 07:37:32,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:32,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:32,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:32,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:32,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:32,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:32,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:32,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:32,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:32,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (1/1) ... [2023-11-19 07:37:33,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:33,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:33,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:33,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db92ad2-b351-47e5-b2e4-6501e82dd728/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-19 07:37:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-19 07:37:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-19 07:37:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-19 07:37:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:37:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:33,101 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 07:37:33,303 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:33,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:33,782 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:33,796 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:33,796 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:33,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:33 BoogieIcfgContainer [2023-11-19 07:37:33,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:33,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:33,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:33,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:33,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:31" (1/3) ... [2023-11-19 07:37:33,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b53527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:33, skipping insertion in model container [2023-11-19 07:37:33,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:32" (2/3) ... [2023-11-19 07:37:33,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b53527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:33, skipping insertion in model container [2023-11-19 07:37:33,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:33" (3/3) ... [2023-11-19 07:37:33,818 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-2.i [2023-11-19 07:37:33,880 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:33,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:33,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-19 07:37:33,893 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:34,072 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:37:34,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 240 transitions, 494 flow [2023-11-19 07:37:34,285 INFO L124 PetriNetUnfolderBase]: 12/238 cut-off events. [2023-11-19 07:37:34,286 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:37:34,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 238 events. 12/238 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 634 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-11-19 07:37:34,304 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 240 transitions, 494 flow [2023-11-19 07:37:34,321 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 228 transitions, 465 flow [2023-11-19 07:37:34,326 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:34,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 228 transitions, 465 flow [2023-11-19 07:37:34,344 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 228 transitions, 465 flow [2023-11-19 07:37:34,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 228 transitions, 465 flow [2023-11-19 07:37:34,429 INFO L124 PetriNetUnfolderBase]: 12/228 cut-off events. [2023-11-19 07:37:34,430 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:37:34,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 228 events. 12/228 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 559 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-11-19 07:37:34,453 INFO L119 LiptonReduction]: Number of co-enabled transitions 20606 [2023-11-19 07:37:39,570 INFO L134 LiptonReduction]: Checked pairs total: 68519 [2023-11-19 07:37:39,570 INFO L136 LiptonReduction]: Total number of compositions: 174 [2023-11-19 07:37:39,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:39,593 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;@2bb8749f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:39,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-19 07:37:39,598 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:37:39,598 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-11-19 07:37:39,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:37:39,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:39,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:37:39,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:39,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1224536904, now seen corresponding path program 1 times [2023-11-19 07:37:39,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:39,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716836637] [2023-11-19 07:37:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,973 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 07:37:39,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:39,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716836637] [2023-11-19 07:37:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716836637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:39,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:39,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:39,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259000203] [2023-11-19 07:37:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:39,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:39,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:40,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:40,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 414 [2023-11-19 07:37:40,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 07:37:40,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:40,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 414 [2023-11-19 07:37:40,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:40,880 INFO L124 PetriNetUnfolderBase]: 2109/4413 cut-off events. [2023-11-19 07:37:40,880 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-11-19 07:37:40,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8093 conditions, 4413 events. 2109/4413 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 27325 event pairs, 675 based on Foata normal form. 0/4036 useless extension candidates. Maximal degree in co-relation 7522. Up to 2472 conditions per place. [2023-11-19 07:37:40,921 INFO L140 encePairwiseOnDemand]: 393/414 looper letters, 86 selfloop transitions, 14 changer transitions 0/130 dead transitions. [2023-11-19 07:37:40,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 130 transitions, 475 flow [2023-11-19 07:37:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:40,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2023-11-19 07:37:40,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2023-11-19 07:37:40,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2023-11-19 07:37:40,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2023-11-19 07:37:40,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:40,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2023-11-19 07:37:40,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states 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 07:37:40,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:40,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:40,971 INFO L175 Difference]: Start difference. First operand has 87 places, 86 transitions, 181 flow. Second operand 3 states and 729 transitions. [2023-11-19 07:37:40,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 130 transitions, 475 flow [2023-11-19 07:37:40,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 130 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:37:40,984 INFO L231 Difference]: Finished difference. Result has 87 places, 98 transitions, 296 flow [2023-11-19 07:37:40,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=87, PETRI_TRANSITIONS=98} [2023-11-19 07:37:40,991 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 0 predicate places. [2023-11-19 07:37:40,991 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 98 transitions, 296 flow [2023-11-19 07:37:40,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 07:37:40,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:40,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:40,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:40,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:41,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash 325612724, now seen corresponding path program 1 times [2023-11-19 07:37:41,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898732010] [2023-11-19 07:37:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,095 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 07:37:41,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:41,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898732010] [2023-11-19 07:37:41,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898732010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:41,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:41,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:41,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580953245] [2023-11-19 07:37:41,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:41,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:41,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:41,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:41,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:41,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 414 [2023-11-19 07:37:41,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 98 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:37:41,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:41,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 414 [2023-11-19 07:37:41,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:42,103 INFO L124 PetriNetUnfolderBase]: 2846/6489 cut-off events. [2023-11-19 07:37:42,103 INFO L125 PetriNetUnfolderBase]: For 629/655 co-relation queries the response was YES. [2023-11-19 07:37:42,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12591 conditions, 6489 events. 2846/6489 cut-off events. For 629/655 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 48798 event pairs, 866 based on Foata normal form. 0/5909 useless extension candidates. Maximal degree in co-relation 12004. Up to 2486 conditions per place. [2023-11-19 07:37:42,166 INFO L140 encePairwiseOnDemand]: 410/414 looper letters, 79 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2023-11-19 07:37:42,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 561 flow [2023-11-19 07:37:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-11-19 07:37:42,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990338164251208 [2023-11-19 07:37:42,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-11-19 07:37:42,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-11-19 07:37:42,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:42,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-11-19 07:37:42,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 07:37:42,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:42,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:42,180 INFO L175 Difference]: Start difference. First operand has 87 places, 98 transitions, 296 flow. Second operand 3 states and 744 transitions. [2023-11-19 07:37:42,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 561 flow [2023-11-19 07:37:42,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 136 transitions, 525 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:42,205 INFO L231 Difference]: Finished difference. Result has 89 places, 101 transitions, 294 flow [2023-11-19 07:37:42,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=89, PETRI_TRANSITIONS=101} [2023-11-19 07:37:42,206 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 2 predicate places. [2023-11-19 07:37:42,206 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 101 transitions, 294 flow [2023-11-19 07:37:42,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:37:42,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:42,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:42,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:42,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:42,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1837137613, now seen corresponding path program 1 times [2023-11-19 07:37:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:42,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398074593] [2023-11-19 07:37:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,744 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 07:37:42,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:42,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398074593] [2023-11-19 07:37:42,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398074593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:42,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:42,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:42,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105613007] [2023-11-19 07:37:42,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:42,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:42,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:42,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 414 [2023-11-19 07:37:42,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 101 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states 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 07:37:42,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:42,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 414 [2023-11-19 07:37:42,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:47,382 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][161], [253#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 238#true, 99#L950-5true, 90#L997-4true, 244#true, Black: 246#(= |#race~flag~0| 0), 186#L1025-3true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,384 INFO L294 olderBase$Statistics]: this new event has 47 ancestors and is cut-off event [2023-11-19 07:37:47,384 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:37:47,384 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:37:47,384 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-19 07:37:47,385 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][162], [Black: 238#true, 99#L950-5true, 90#L997-4true, 164#L1025-4true, 244#true, Black: 246#(= |#race~flag~0| 0), 254#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,385 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2023-11-19 07:37:47,385 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,385 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,385 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,502 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][178], [Black: 238#true, 99#L950-5true, 90#L997-4true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), 45#L1025-5true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,502 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:37:47,502 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,503 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,503 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,515 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][161], [253#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 238#true, 99#L950-5true, 74#L999true, 244#true, Black: 246#(= |#race~flag~0| 0), 186#L1025-3true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,515 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2023-11-19 07:37:47,516 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,516 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,516 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-19 07:37:47,516 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][162], [Black: 238#true, 99#L950-5true, 74#L999true, 164#L1025-4true, 244#true, Black: 246#(= |#race~flag~0| 0), 254#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,516 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:37:47,517 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,517 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,517 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-19 07:37:47,736 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][178], [Black: 238#true, 74#L999true, 99#L950-5true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), 45#L1025-5true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:47,736 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-19 07:37:47,736 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,737 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,737 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,742 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][178], [Black: 238#true, 99#L950-5true, 90#L997-4true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), t2Thread1of1ForFork0InUse, 209#L1025-6true]) [2023-11-19 07:37:47,742 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-19 07:37:47,742 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,743 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,743 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-19 07:37:47,859 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([733] L950-3-->L950-5: Formula: (= (+ v_~top~0_11 1) |v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|) InVars {t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} OutVars{t2Thread1of1ForFork0_dec_top_#t~nondet34#1=|v_t2Thread1of1ForFork0_dec_top_#t~nondet34#1_21|, ~top~0=v_~top~0_11, t2Thread1of1ForFork0_dec_top_#t~post33#1=|v_t2Thread1of1ForFork0_dec_top_#t~post33#1_17|} AuxVars[] AssignedVars[t2Thread1of1ForFork0_dec_top_#t~nondet34#1, ~top~0][178], [Black: 238#true, 99#L950-5true, 74#L999true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), t2Thread1of1ForFork0InUse, 209#L1025-6true]) [2023-11-19 07:37:47,860 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2023-11-19 07:37:47,860 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:37:47,862 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:37:47,862 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-19 07:37:48,077 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([770] L954-6-->L984-1: Formula: (and (= |v_t2Thread1of1ForFork0_pop_#t~ret40#1_33| |v_t2Thread1of1ForFork0_get_top_#res#1_19|) (= v_~top~0_13 |v_t2Thread1of1ForFork0_get_top_#res#1_19|)) InVars {~top~0=v_~top~0_13} OutVars{t2Thread1of1ForFork0_get_top_#res#1=|v_t2Thread1of1ForFork0_get_top_#res#1_19|, t2Thread1of1ForFork0_pop_#t~ret40#1=|v_t2Thread1of1ForFork0_pop_#t~ret40#1_33|, ~top~0=v_~top~0_13} AuxVars[] AssignedVars[t2Thread1of1ForFork0_get_top_#res#1, t2Thread1of1ForFork0_pop_#t~ret40#1][215], [136#L984-1true, 253#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 238#true, 49#L946-5true, 244#true, Black: 246#(= |#race~flag~0| 0), 186#L1025-3true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:48,077 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-19 07:37:48,077 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:37:48,077 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:37:48,077 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:37:48,169 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([770] L954-6-->L984-1: Formula: (and (= |v_t2Thread1of1ForFork0_pop_#t~ret40#1_33| |v_t2Thread1of1ForFork0_get_top_#res#1_19|) (= v_~top~0_13 |v_t2Thread1of1ForFork0_get_top_#res#1_19|)) InVars {~top~0=v_~top~0_13} OutVars{t2Thread1of1ForFork0_get_top_#res#1=|v_t2Thread1of1ForFork0_get_top_#res#1_19|, t2Thread1of1ForFork0_pop_#t~ret40#1=|v_t2Thread1of1ForFork0_pop_#t~ret40#1_33|, ~top~0=v_~top~0_13} AuxVars[] AssignedVars[t2Thread1of1ForFork0_get_top_#res#1, t2Thread1of1ForFork0_pop_#t~ret40#1][225], [136#L984-1true, Black: 238#true, 49#L946-5true, 164#L1025-4true, 244#true, Black: 246#(= |#race~flag~0| 0), 254#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:48,169 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2023-11-19 07:37:48,169 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:37:48,169 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:37:48,170 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:37:48,403 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([770] L954-6-->L984-1: Formula: (and (= |v_t2Thread1of1ForFork0_pop_#t~ret40#1_33| |v_t2Thread1of1ForFork0_get_top_#res#1_19|) (= v_~top~0_13 |v_t2Thread1of1ForFork0_get_top_#res#1_19|)) InVars {~top~0=v_~top~0_13} OutVars{t2Thread1of1ForFork0_get_top_#res#1=|v_t2Thread1of1ForFork0_get_top_#res#1_19|, t2Thread1of1ForFork0_pop_#t~ret40#1=|v_t2Thread1of1ForFork0_pop_#t~ret40#1_33|, ~top~0=v_~top~0_13} AuxVars[] AssignedVars[t2Thread1of1ForFork0_get_top_#res#1, t2Thread1of1ForFork0_pop_#t~ret40#1][232], [136#L984-1true, Black: 238#true, 49#L946-5true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), 45#L1025-5true, t2Thread1of1ForFork0InUse]) [2023-11-19 07:37:48,403 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:37:48,403 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:37:48,403 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:37:48,403 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:37:48,527 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([770] L954-6-->L984-1: Formula: (and (= |v_t2Thread1of1ForFork0_pop_#t~ret40#1_33| |v_t2Thread1of1ForFork0_get_top_#res#1_19|) (= v_~top~0_13 |v_t2Thread1of1ForFork0_get_top_#res#1_19|)) InVars {~top~0=v_~top~0_13} OutVars{t2Thread1of1ForFork0_get_top_#res#1=|v_t2Thread1of1ForFork0_get_top_#res#1_19|, t2Thread1of1ForFork0_pop_#t~ret40#1=|v_t2Thread1of1ForFork0_pop_#t~ret40#1_33|, ~top~0=v_~top~0_13} AuxVars[] AssignedVars[t2Thread1of1ForFork0_get_top_#res#1, t2Thread1of1ForFork0_pop_#t~ret40#1][232], [136#L984-1true, Black: 238#true, 49#L946-5true, 255#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 244#true, Black: 246#(= |#race~flag~0| 0), t2Thread1of1ForFork0InUse, 209#L1025-6true]) [2023-11-19 07:37:48,528 INFO L294 olderBase$Statistics]: this new event has 53 ancestors and is cut-off event [2023-11-19 07:37:48,528 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-11-19 07:37:48,528 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-11-19 07:37:48,528 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-11-19 07:37:49,109 INFO L124 PetriNetUnfolderBase]: 24478/44012 cut-off events. [2023-11-19 07:37:49,110 INFO L125 PetriNetUnfolderBase]: For 5022/5248 co-relation queries the response was YES. [2023-11-19 07:37:49,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89772 conditions, 44012 events. 24478/44012 cut-off events. For 5022/5248 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 380128 event pairs, 6682 based on Foata normal form. 1/39253 useless extension candidates. Maximal degree in co-relation 88484. Up to 20923 conditions per place. [2023-11-19 07:37:49,509 INFO L140 encePairwiseOnDemand]: 404/414 looper letters, 203 selfloop transitions, 21 changer transitions 0/271 dead transitions. [2023-11-19 07:37:49,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 271 transitions, 1195 flow [2023-11-19 07:37:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2023-11-19 07:37:49,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5929951690821256 [2023-11-19 07:37:49,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1473 transitions. [2023-11-19 07:37:49,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1473 transitions. [2023-11-19 07:37:49,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:49,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1473 transitions. [2023-11-19 07:37:49,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states 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 07:37:49,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 07:37:49,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 07:37:49,532 INFO L175 Difference]: Start difference. First operand has 89 places, 101 transitions, 294 flow. Second operand 6 states and 1473 transitions. [2023-11-19 07:37:49,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 271 transitions, 1195 flow [2023-11-19 07:37:49,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 271 transitions, 1173 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:49,552 INFO L231 Difference]: Finished difference. Result has 97 places, 121 transitions, 430 flow [2023-11-19 07:37:49,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=97, PETRI_TRANSITIONS=121} [2023-11-19 07:37:49,554 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2023-11-19 07:37:49,554 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 121 transitions, 430 flow [2023-11-19 07:37:49,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states 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 07:37:49,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:49,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:49,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:49,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:49,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash -790572492, now seen corresponding path program 1 times [2023-11-19 07:37:49,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:49,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114562410] [2023-11-19 07:37:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:49,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:49,646 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 07:37:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114562410] [2023-11-19 07:37:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114562410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:49,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517613592] [2023-11-19 07:37:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:49,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:49,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:49,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:49,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 414 [2023-11-19 07:37:49,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 121 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:37:49,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:49,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 414 [2023-11-19 07:37:49,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:53,140 INFO L124 PetriNetUnfolderBase]: 11077/28750 cut-off events. [2023-11-19 07:37:53,140 INFO L125 PetriNetUnfolderBase]: For 3005/3294 co-relation queries the response was YES. [2023-11-19 07:37:53,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58659 conditions, 28750 events. 11077/28750 cut-off events. For 3005/3294 co-relation queries the response was YES. Maximal size of possible extension queue 848. Compared 310283 event pairs, 4165 based on Foata normal form. 122/26444 useless extension candidates. Maximal degree in co-relation 58013. Up to 11432 conditions per place. [2023-11-19 07:37:53,374 INFO L140 encePairwiseOnDemand]: 409/414 looper letters, 73 selfloop transitions, 3 changer transitions 0/153 dead transitions. [2023-11-19 07:37:53,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 153 transitions, 669 flow [2023-11-19 07:37:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 737 transitions. [2023-11-19 07:37:53,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5933977455716586 [2023-11-19 07:37:53,379 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 737 transitions. [2023-11-19 07:37:53,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 737 transitions. [2023-11-19 07:37:53,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:53,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 737 transitions. [2023-11-19 07:37:53,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 07:37:53,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:53,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:37:53,390 INFO L175 Difference]: Start difference. First operand has 97 places, 121 transitions, 430 flow. Second operand 3 states and 737 transitions. [2023-11-19 07:37:53,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 153 transitions, 669 flow [2023-11-19 07:37:53,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 153 transitions, 669 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:53,446 INFO L231 Difference]: Finished difference. Result has 101 places, 123 transitions, 454 flow [2023-11-19 07:37:53,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=101, PETRI_TRANSITIONS=123} [2023-11-19 07:37:53,450 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 14 predicate places. [2023-11-19 07:37:53,450 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 123 transitions, 454 flow [2023-11-19 07:37:53,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:37:53,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:53,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:53,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:53,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:53,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:53,453 INFO L85 PathProgramCache]: Analyzing trace with hash -205700395, now seen corresponding path program 1 times [2023-11-19 07:37:53,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:53,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115340300] [2023-11-19 07:37:53,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:53,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:53,899 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 07:37:53,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:53,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115340300] [2023-11-19 07:37:53,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115340300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:53,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:53,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234055097] [2023-11-19 07:37:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:53,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:53,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:53,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:54,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 414 [2023-11-19 07:37:54,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states 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 07:37:54,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:54,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 414 [2023-11-19 07:37:54,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:02,238 INFO L124 PetriNetUnfolderBase]: 35482/64909 cut-off events. [2023-11-19 07:38:02,239 INFO L125 PetriNetUnfolderBase]: For 34389/34842 co-relation queries the response was YES. [2023-11-19 07:38:02,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162305 conditions, 64909 events. 35482/64909 cut-off events. For 34389/34842 co-relation queries the response was YES. Maximal size of possible extension queue 1248. Compared 579612 event pairs, 18535 based on Foata normal form. 0/60518 useless extension candidates. Maximal degree in co-relation 161020. Up to 50520 conditions per place. [2023-11-19 07:38:02,694 INFO L140 encePairwiseOnDemand]: 400/414 looper letters, 156 selfloop transitions, 44 changer transitions 0/242 dead transitions. [2023-11-19 07:38:02,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 242 transitions, 1214 flow [2023-11-19 07:38:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:38:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1375 transitions. [2023-11-19 07:38:02,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5535426731078905 [2023-11-19 07:38:02,700 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1375 transitions. [2023-11-19 07:38:02,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1375 transitions. [2023-11-19 07:38:02,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:02,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1375 transitions. [2023-11-19 07:38:02,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 07:38:02,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 07:38:02,715 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 414.0) internal successors, (2898), 7 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states 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 07:38:02,716 INFO L175 Difference]: Start difference. First operand has 101 places, 123 transitions, 454 flow. Second operand 6 states and 1375 transitions. [2023-11-19 07:38:02,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 242 transitions, 1214 flow [2023-11-19 07:38:03,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 242 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:38:03,421 INFO L231 Difference]: Finished difference. Result has 108 places, 162 transitions, 754 flow [2023-11-19 07:38:03,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=754, PETRI_PLACES=108, PETRI_TRANSITIONS=162} [2023-11-19 07:38:03,423 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 21 predicate places. [2023-11-19 07:38:03,423 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 162 transitions, 754 flow [2023-11-19 07:38:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.16666666666666) internal successors, (1225), 6 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states 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 07:38:03,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:03,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:03,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:38:03,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:38:03,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1231416109, now seen corresponding path program 1 times [2023-11-19 07:38:03,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:03,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531474760] [2023-11-19 07:38:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:03,481 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 07:38:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:03,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531474760] [2023-11-19 07:38:03,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531474760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:03,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:03,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901412188] [2023-11-19 07:38:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:03,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:03,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 414 [2023-11-19 07:38:03,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 162 transitions, 754 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 07:38:03,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:03,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 414 [2023-11-19 07:38:03,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:38:09,854 INFO L124 PetriNetUnfolderBase]: 19972/47347 cut-off events. [2023-11-19 07:38:09,855 INFO L125 PetriNetUnfolderBase]: For 15409/17640 co-relation queries the response was YES. [2023-11-19 07:38:10,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114212 conditions, 47347 events. 19972/47347 cut-off events. For 15409/17640 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 509286 event pairs, 7807 based on Foata normal form. 490/44050 useless extension candidates. Maximal degree in co-relation 87528. Up to 21149 conditions per place. [2023-11-19 07:38:10,214 INFO L140 encePairwiseOnDemand]: 411/414 looper letters, 82 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2023-11-19 07:38:10,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 199 transitions, 1031 flow [2023-11-19 07:38:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:38:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2023-11-19 07:38:10,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5950080515297906 [2023-11-19 07:38:10,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2023-11-19 07:38:10,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2023-11-19 07:38:10,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:38:10,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2023-11-19 07:38:10,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:10,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:38:10,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 414.0) internal successors, (1656), 4 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states 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 07:38:10,226 INFO L175 Difference]: Start difference. First operand has 108 places, 162 transitions, 754 flow. Second operand 3 states and 739 transitions. [2023-11-19 07:38:10,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 199 transitions, 1031 flow [2023-11-19 07:38:11,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 199 transitions, 1007 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-19 07:38:11,270 INFO L231 Difference]: Finished difference. Result has 111 places, 163 transitions, 742 flow [2023-11-19 07:38:11,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=111, PETRI_TRANSITIONS=163} [2023-11-19 07:38:11,272 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 24 predicate places. [2023-11-19 07:38:11,272 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 163 transitions, 742 flow [2023-11-19 07:38:11,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states 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 07:38:11,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:38:11,273 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] [2023-11-19 07:38:11,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:38:11,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:38:11,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:11,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2072832215, now seen corresponding path program 1 times [2023-11-19 07:38:11,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:11,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263700511] [2023-11-19 07:38:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:12,061 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 07:38:12,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:12,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263700511] [2023-11-19 07:38:12,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263700511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:12,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:12,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:38:12,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310880249] [2023-11-19 07:38:12,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:12,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:38:12,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:12,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:38:12,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:38:12,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 414 [2023-11-19 07:38:12,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 163 transitions, 742 flow. Second operand has 9 states, 9 states have (on average 211.88888888888889) internal successors, (1907), 9 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states 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 07:38:12,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:38:12,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 414 [2023-11-19 07:38:12,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand