./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:51:33,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:51:33,429 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:51:33,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:51:33,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:51:33,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:51:33,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:51:33,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:51:33,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:51:33,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:51:33,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:51:33,456 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:51:33,457 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:51:33,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:51:33,457 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-03-04 06:51:33,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:51:33,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:51:33,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:51:33,679 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:51:33,680 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:51:33,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-04 06:51:34,855 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1fc85ea/658ac70fe8e04756bf18cf4be4f8b78b/FLAGebdd2cb0c [2025-03-04 06:51:35,199 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:51:35,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-04 06:51:35,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1fc85ea/658ac70fe8e04756bf18cf4be4f8b78b/FLAGebdd2cb0c [2025-03-04 06:51:35,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1fc85ea/658ac70fe8e04756bf18cf4be4f8b78b [2025-03-04 06:51:35,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:51:35,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:51:35,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:51:35,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:51:35,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:51:35,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446401e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35, skipping insertion in model container [2025-03-04 06:51:35,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:51:35,528 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,529 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,529 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,529 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:51:35,593 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:51:35,637 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,637 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,637 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,638 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 06:51:35,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:51:35,707 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:51:35,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35 WrapperNode [2025-03-04 06:51:35,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:51:35,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:51:35,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:51:35,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:51:35,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,760 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 526 [2025-03-04 06:51:35,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:51:35,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:51:35,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:51:35,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:51:35,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,797 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:51:35,813 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:51:35,813 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:51:35,813 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:51:35,815 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (1/1) ... [2025-03-04 06:51:35,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:51:35,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:51:35,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:51:35,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:51:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:51:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 06:51:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-04 06:51:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-04 06:51:35,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:51:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 06:51:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:51:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:51:35,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:51:35,863 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:51:35,986 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:51:35,987 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:51:36,674 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-04 06:51:36,675 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-03-04 06:51:36,675 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-04 06:51:36,675 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-03-04 06:51:36,680 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:51:36,680 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:51:36,734 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:51:36,734 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:51:36,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:51:36 BoogieIcfgContainer [2025-03-04 06:51:36,734 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:51:36,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:51:36,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:51:36,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:51:36,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:51:35" (1/3) ... [2025-03-04 06:51:36,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcc7096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:51:36, skipping insertion in model container [2025-03-04 06:51:36,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:51:35" (2/3) ... [2025-03-04 06:51:36,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcc7096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:51:36, skipping insertion in model container [2025-03-04 06:51:36,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:51:36" (3/3) ... [2025-03-04 06:51:36,748 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-03-04 06:51:36,770 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:51:36,771 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 544 locations, 1 initial locations, 18 loop locations, and 28 error locations. [2025-03-04 06:51:36,772 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:51:36,933 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-04 06:51:36,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 583 transitions, 1186 flow [2025-03-04 06:51:37,205 INFO L124 PetriNetUnfolderBase]: 58/889 cut-off events. [2025-03-04 06:51:37,206 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-04 06:51:37,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 889 events. 58/889 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4186 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 497. Up to 8 conditions per place. [2025-03-04 06:51:37,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 550 places, 583 transitions, 1186 flow [2025-03-04 06:51:37,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 550 places, 583 transitions, 1186 flow [2025-03-04 06:51:37,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:51:37,256 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10d93581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:51:37,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-04 06:51:37,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:51:37,272 INFO L124 PetriNetUnfolderBase]: 0/119 cut-off events. [2025-03-04 06:51:37,272 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:51:37,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:51:37,273 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:51:37,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-04 06:51:37,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:51:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash -183403118, now seen corresponding path program 1 times [2025-03-04 06:51:37,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:51:37,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21287310] [2025-03-04 06:51:37,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:51:37,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:51:37,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-04 06:51:37,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-04 06:51:37,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:51:37,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:51:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:51:38,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:51:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21287310] [2025-03-04 06:51:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21287310] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:51:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:51:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:51:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851287100] [2025-03-04 06:51:38,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:51:38,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:51:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:51:38,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:51:38,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:51:38,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 583 [2025-03-04 06:51:38,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 583 transitions, 1186 flow. Second operand has 6 states, 6 states have (on average 416.3333333333333) internal successors, (2498), 6 states have internal predecessors, (2498), 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) [2025-03-04 06:51:38,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:51:38,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 583 [2025-03-04 06:51:38,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:51:49,887 INFO L124 PetriNetUnfolderBase]: 39310/99813 cut-off events. [2025-03-04 06:51:49,888 INFO L125 PetriNetUnfolderBase]: For 1040/1231 co-relation queries the response was YES. [2025-03-04 06:51:50,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157956 conditions, 99813 events. 39310/99813 cut-off events. For 1040/1231 co-relation queries the response was YES. Maximal size of possible extension queue 2071. Compared 1243425 event pairs, 34452 based on Foata normal form. 9525/100644 useless extension candidates. Maximal degree in co-relation 153775. Up to 57748 conditions per place. [2025-03-04 06:51:50,538 INFO L140 encePairwiseOnDemand]: 545/583 looper letters, 128 selfloop transitions, 10 changer transitions 0/551 dead transitions. [2025-03-04 06:51:50,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 551 transitions, 1398 flow [2025-03-04 06:51:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:51:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:51:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2656 transitions. [2025-03-04 06:51:50,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592910234419669 [2025-03-04 06:51:50,566 INFO L175 Difference]: Start difference. First operand has 550 places, 583 transitions, 1186 flow. Second operand 6 states and 2656 transitions. [2025-03-04 06:51:50,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 551 transitions, 1398 flow [2025-03-04 06:51:50,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 551 transitions, 1398 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:51:50,593 INFO L231 Difference]: Finished difference. Result has 549 places, 551 transitions, 1142 flow [2025-03-04 06:51:50,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=583, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=549, PETRI_TRANSITIONS=551} [2025-03-04 06:51:50,598 INFO L279 CegarLoopForPetriNet]: 550 programPoint places, -1 predicate places. [2025-03-04 06:51:50,599 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 551 transitions, 1142 flow [2025-03-04 06:51:50,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 416.3333333333333) internal successors, (2498), 6 states have internal predecessors, (2498), 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) [2025-03-04 06:51:50,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:51:50,600 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:51:50,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:51:50,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-04 06:51:50,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:51:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1948844398, now seen corresponding path program 1 times [2025-03-04 06:51:50,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:51:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638738559] [2025-03-04 06:51:50,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:51:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:51:50,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-04 06:51:50,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-04 06:51:50,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:51:50,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:51:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:51:50,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:51:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638738559] [2025-03-04 06:51:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638738559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:51:50,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:51:50,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:51:50,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001165029] [2025-03-04 06:51:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:51:50,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:51:50,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:51:50,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:51:50,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:51:50,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 583 [2025-03-04 06:51:50,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 551 transitions, 1142 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2025-03-04 06:51:50,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:51:50,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 583 [2025-03-04 06:51:50,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:51:51,537 INFO L124 PetriNetUnfolderBase]: 390/4202 cut-off events. [2025-03-04 06:51:51,537 INFO L125 PetriNetUnfolderBase]: For 186/187 co-relation queries the response was YES. [2025-03-04 06:51:51,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4874 conditions, 4202 events. 390/4202 cut-off events. For 186/187 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 38401 event pairs, 264 based on Foata normal form. 1/3814 useless extension candidates. Maximal degree in co-relation 4549. Up to 567 conditions per place. [2025-03-04 06:51:51,581 INFO L140 encePairwiseOnDemand]: 580/583 looper letters, 27 selfloop transitions, 2 changer transitions 0/552 dead transitions. [2025-03-04 06:51:51,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 552 transitions, 1202 flow [2025-03-04 06:51:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:51:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:51:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1611 transitions. [2025-03-04 06:51:51,585 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9210977701543739 [2025-03-04 06:51:51,586 INFO L175 Difference]: Start difference. First operand has 549 places, 551 transitions, 1142 flow. Second operand 3 states and 1611 transitions. [2025-03-04 06:51:51,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 552 transitions, 1202 flow [2025-03-04 06:51:51,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 552 transitions, 1182 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:51:51,600 INFO L231 Difference]: Finished difference. Result has 547 places, 552 transitions, 1134 flow [2025-03-04 06:51:51,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=583, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1134, PETRI_PLACES=547, PETRI_TRANSITIONS=552} [2025-03-04 06:51:51,602 INFO L279 CegarLoopForPetriNet]: 550 programPoint places, -3 predicate places. [2025-03-04 06:51:51,603 INFO L471 AbstractCegarLoop]: Abstraction has has 547 places, 552 transitions, 1134 flow [2025-03-04 06:51:51,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2025-03-04 06:51:51,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:51:51,604 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:51:51,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:51:51,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-04 06:51:51,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:51:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash 544262974, now seen corresponding path program 1 times [2025-03-04 06:51:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:51:51,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057555094] [2025-03-04 06:51:51,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:51:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:51:51,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-04 06:51:51,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-04 06:51:51,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:51:51,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:51:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:51:52,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:51:52,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057555094] [2025-03-04 06:51:52,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057555094] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:51:52,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:51:52,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:51:52,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733144523] [2025-03-04 06:51:52,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:51:52,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:51:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:51:52,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:51:52,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:51:52,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 583 [2025-03-04 06:51:52,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 552 transitions, 1134 flow. Second operand has 6 states, 6 states have (on average 416.3333333333333) internal successors, (2498), 6 states have internal predecessors, (2498), 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) [2025-03-04 06:51:52,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:51:52,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 583 [2025-03-04 06:51:52,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:52:03,688 INFO L124 PetriNetUnfolderBase]: 39311/99935 cut-off events. [2025-03-04 06:52:03,688 INFO L125 PetriNetUnfolderBase]: For 966/1157 co-relation queries the response was YES. [2025-03-04 06:52:03,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158129 conditions, 99935 events. 39311/99935 cut-off events. For 966/1157 co-relation queries the response was YES. Maximal size of possible extension queue 2072. Compared 1244894 event pairs, 34452 based on Foata normal form. 0/91237 useless extension candidates. Maximal degree in co-relation 157862. Up to 57782 conditions per place. [2025-03-04 06:52:04,271 INFO L140 encePairwiseOnDemand]: 571/583 looper letters, 128 selfloop transitions, 10 changer transitions 0/550 dead transitions. [2025-03-04 06:52:04,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 550 transitions, 1406 flow [2025-03-04 06:52:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:52:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:52:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2630 transitions. [2025-03-04 06:52:04,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7518582046883934 [2025-03-04 06:52:04,276 INFO L175 Difference]: Start difference. First operand has 547 places, 552 transitions, 1134 flow. Second operand 6 states and 2630 transitions. [2025-03-04 06:52:04,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 550 transitions, 1406 flow [2025-03-04 06:52:04,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 550 transitions, 1404 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:52:04,285 INFO L231 Difference]: Finished difference. Result has 549 places, 550 transitions, 1148 flow [2025-03-04 06:52:04,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=583, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1148, PETRI_PLACES=549, PETRI_TRANSITIONS=550} [2025-03-04 06:52:04,287 INFO L279 CegarLoopForPetriNet]: 550 programPoint places, -1 predicate places. [2025-03-04 06:52:04,287 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 550 transitions, 1148 flow [2025-03-04 06:52:04,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 416.3333333333333) internal successors, (2498), 6 states have internal predecessors, (2498), 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) [2025-03-04 06:52:04,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:52:04,289 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:52:04,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:52:04,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-04 06:52:04,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:52:04,290 INFO L85 PathProgramCache]: Analyzing trace with hash -111443769, now seen corresponding path program 1 times [2025-03-04 06:52:04,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:52:04,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158507239] [2025-03-04 06:52:04,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:52:04,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:52:04,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 06:52:04,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 06:52:04,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:52:04,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:52:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:52:04,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:52:04,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158507239] [2025-03-04 06:52:04,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158507239] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:52:04,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:52:04,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:52:04,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538827999] [2025-03-04 06:52:04,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:52:04,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:52:04,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:52:04,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:52:04,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:52:05,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 583 [2025-03-04 06:52:05,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 550 transitions, 1148 flow. Second operand has 6 states, 6 states have (on average 416.6666666666667) internal successors, (2500), 6 states have internal predecessors, (2500), 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) [2025-03-04 06:52:05,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:52:05,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 583 [2025-03-04 06:52:05,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand