./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB --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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:00:52,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:00:52,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:00:52,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:00:52,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:00:52,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:00:52,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:00:52,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:00:52,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:00:52,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:00:52,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:00:52,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:00:52,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:00:52,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:00:52,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:00:52,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:00:52,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:00:52,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:00:52,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:00:52,822 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:00:52,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:52,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:52,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:52,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:00:52,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:00:52,825 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-11-28 04:00:53,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:00:53,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:00:53,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:00:53,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:00:53,162 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:00:53,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-28 04:00:56,140 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/data/51fd0ac37/8ee00d1b8ac443e08f0b8a06df54d3aa/FLAGf0bd33ebe [2024-11-28 04:00:56,471 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:00:56,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-28 04:00:56,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/data/51fd0ac37/8ee00d1b8ac443e08f0b8a06df54d3aa/FLAGf0bd33ebe [2024-11-28 04:00:56,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/data/51fd0ac37/8ee00d1b8ac443e08f0b8a06df54d3aa [2024-11-28 04:00:56,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:00:56,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:00:56,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:56,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:00:56,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:00:56,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:56" (1/1) ... [2024-11-28 04:00:56,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c23c04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:56, skipping insertion in model container [2024-11-28 04:00:56,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:56" (1/1) ... [2024-11-28 04:00:56,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:00:56,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:56,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:00:56,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:57,043 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:00:57,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57 WrapperNode [2024-11-28 04:00:57,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:57,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:57,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:00:57,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:00:57,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,106 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2024-11-28 04:00:57,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:57,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:00:57,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:00:57,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:00:57,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,142 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:00:57,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:00:57,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:00:57,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:00:57,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:57,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:00:57,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60e91b0-c442-421e-ae7b-95f132d956e0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:00:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:00:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:00:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:00:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:00:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:00:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:00:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:00:57,229 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:00:57,364 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:00:57,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:00:57,843 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:00:57,843 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:57,895 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:57,895 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 04:00:57,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:57 BoogieIcfgContainer [2024-11-28 04:00:57,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:57,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:00:57,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:00:57,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:00:57,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:00:56" (1/3) ... [2024-11-28 04:00:57,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb3d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:57, skipping insertion in model container [2024-11-28 04:00:57,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (2/3) ... [2024-11-28 04:00:57,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb3d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:57, skipping insertion in model container [2024-11-28 04:00:57,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:57" (3/3) ... [2024-11-28 04:00:57,911 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-11-28 04:00:57,929 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:00:57,930 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_36-indirect_racefree.i that has 2 procedures, 176 locations, 1 initial locations, 6 loop locations, and 13 error locations. [2024-11-28 04:00:57,930 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:00:58,064 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:00:58,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 385 flow [2024-11-28 04:00:58,266 INFO L124 PetriNetUnfolderBase]: 19/256 cut-off events. [2024-11-28 04:00:58,272 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:00:58,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 256 events. 19/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 777 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-11-28 04:00:58,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 189 transitions, 385 flow [2024-11-28 04:00:58,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 189 transitions, 385 flow [2024-11-28 04:00:58,313 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:00:58,328 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;@1bbe3f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:00:58,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 04:00:58,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:00:58,345 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-28 04:00:58,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:00:58,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:58,347 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] [2024-11-28 04:00:58,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:00:58,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2129232069, now seen corresponding path program 1 times [2024-11-28 04:00:58,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:58,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441060628] [2024-11-28 04:00:58,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:58,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:58,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:58,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441060628] [2024-11-28 04:00:58,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441060628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:58,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:58,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862822021] [2024-11-28 04:00:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:58,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:58,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:58,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:58,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:58,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-28 04:00:58,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 189 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-28 04:00:58,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:58,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-28 04:00:58,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:58,979 INFO L124 PetriNetUnfolderBase]: 37/641 cut-off events. [2024-11-28 04:00:58,979 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:00:58,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 641 events. 37/641 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2899 event pairs, 36 based on Foata normal form. 62/639 useless extension candidates. Maximal degree in co-relation 617. Up to 97 conditions per place. [2024-11-28 04:00:58,988 INFO L140 encePairwiseOnDemand]: 174/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-11-28 04:00:58,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 174 transitions, 395 flow [2024-11-28 04:00:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:00:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-11-28 04:00:59,009 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8783068783068783 [2024-11-28 04:00:59,012 INFO L175 Difference]: Start difference. First operand has 179 places, 189 transitions, 385 flow. Second operand 3 states and 498 transitions. [2024-11-28 04:00:59,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 174 transitions, 395 flow [2024-11-28 04:00:59,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 174 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:00:59,026 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 359 flow [2024-11-28 04:00:59,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2024-11-28 04:00:59,034 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -1 predicate places. [2024-11-28 04:00:59,034 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 359 flow [2024-11-28 04:00:59,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-28 04:00:59,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:59,036 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] [2024-11-28 04:00:59,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:00:59,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:00:59,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1787600656, now seen corresponding path program 1 times [2024-11-28 04:00:59,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31246214] [2024-11-28 04:00:59,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31246214] [2024-11-28 04:00:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31246214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:59,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:59,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917346201] [2024-11-28 04:00:59,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:59,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:59,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:59,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:59,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:59,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-28 04:00:59,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-28 04:00:59,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:59,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-28 04:00:59,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:59,384 INFO L124 PetriNetUnfolderBase]: 37/638 cut-off events. [2024-11-28 04:00:59,384 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:00:59,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 638 events. 37/638 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2930 event pairs, 36 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 702. Up to 94 conditions per place. [2024-11-28 04:00:59,390 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2024-11-28 04:00:59,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 172 transitions, 389 flow [2024-11-28 04:00:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:00:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-11-28 04:00:59,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-11-28 04:00:59,394 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 359 flow. Second operand 3 states and 490 transitions. [2024-11-28 04:00:59,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 172 transitions, 389 flow [2024-11-28 04:00:59,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 172 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:00:59,402 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 353 flow [2024-11-28 04:00:59,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2024-11-28 04:00:59,404 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-28 04:00:59,405 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 353 flow [2024-11-28 04:00:59,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-28 04:00:59,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:59,406 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] [2024-11-28 04:00:59,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:00:59,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:00:59,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 115070517, now seen corresponding path program 1 times [2024-11-28 04:00:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359190632] [2024-11-28 04:00:59,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359190632] [2024-11-28 04:00:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359190632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:59,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:59,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:59,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457990874] [2024-11-28 04:00:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:59,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:59,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:59,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:59,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:59,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-28 04:00:59,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-28 04:00:59,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:59,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-28 04:00:59,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:59,712 INFO L124 PetriNetUnfolderBase]: 41/579 cut-off events. [2024-11-28 04:00:59,713 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:00:59,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 579 events. 41/579 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2571 event pairs, 40 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 654. Up to 104 conditions per place. [2024-11-28 04:00:59,716 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2024-11-28 04:00:59,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 391 flow [2024-11-28 04:00:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:00:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2024-11-28 04:00:59,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-11-28 04:00:59,719 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 353 flow. Second operand 3 states and 486 transitions. [2024-11-28 04:00:59,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 391 flow [2024-11-28 04:00:59,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 171 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:00:59,725 INFO L231 Difference]: Finished difference. Result has 176 places, 171 transitions, 354 flow [2024-11-28 04:00:59,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=176, PETRI_TRANSITIONS=171} [2024-11-28 04:00:59,728 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-28 04:00:59,728 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 171 transitions, 354 flow [2024-11-28 04:00:59,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-28 04:00:59,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:59,729 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] [2024-11-28 04:00:59,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:00:59,729 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:00:59,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1029200342, now seen corresponding path program 1 times [2024-11-28 04:00:59,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937548022] [2024-11-28 04:00:59,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:00,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:00,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937548022] [2024-11-28 04:01:00,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937548022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:00,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:00,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:00,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182933573] [2024-11-28 04:01:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:00,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:01:00,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:00,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:01:00,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:01:00,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 189 [2024-11-28 04:01:00,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 171 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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) [2024-11-28 04:01:00,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:00,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 189 [2024-11-28 04:01:00,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:01,683 INFO L124 PetriNetUnfolderBase]: 579/2280 cut-off events. [2024-11-28 04:01:01,683 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:01:01,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 2280 events. 579/2280 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 16031 event pairs, 357 based on Foata normal form. 0/2088 useless extension candidates. Maximal degree in co-relation 3504. Up to 1080 conditions per place. [2024-11-28 04:01:01,696 INFO L140 encePairwiseOnDemand]: 166/189 looper letters, 73 selfloop transitions, 70 changer transitions 0/264 dead transitions. [2024-11-28 04:01:01,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 826 flow [2024-11-28 04:01:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:01:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:01:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 900 transitions. [2024-11-28 04:01:01,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2024-11-28 04:01:01,700 INFO L175 Difference]: Start difference. First operand has 176 places, 171 transitions, 354 flow. Second operand 6 states and 900 transitions. [2024-11-28 04:01:01,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 826 flow [2024-11-28 04:01:01,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:01,708 INFO L231 Difference]: Finished difference. Result has 184 places, 240 transitions, 812 flow [2024-11-28 04:01:01,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=184, PETRI_TRANSITIONS=240} [2024-11-28 04:01:01,709 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 5 predicate places. [2024-11-28 04:01:01,709 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 240 transitions, 812 flow [2024-11-28 04:01:01,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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) [2024-11-28 04:01:01,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:01,710 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] [2024-11-28 04:01:01,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:01:01,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:01:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1804842133, now seen corresponding path program 1 times [2024-11-28 04:01:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250001296] [2024-11-28 04:01:01,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250001296] [2024-11-28 04:01:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250001296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952222741] [2024-11-28 04:01:01,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:01,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:01,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:01,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:01,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-11-28 04:01:01,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 240 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2024-11-28 04:01:01,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:01,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-11-28 04:01:01,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:02,054 INFO L124 PetriNetUnfolderBase]: 188/1107 cut-off events. [2024-11-28 04:01:02,054 INFO L125 PetriNetUnfolderBase]: For 119/136 co-relation queries the response was YES. [2024-11-28 04:01:02,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1795 conditions, 1107 events. 188/1107 cut-off events. For 119/136 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6388 event pairs, 28 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 1753. Up to 191 conditions per place. [2024-11-28 04:01:02,061 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 22 selfloop transitions, 3 changer transitions 0/246 dead transitions. [2024-11-28 04:01:02,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 246 transitions, 874 flow [2024-11-28 04:01:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-11-28 04:01:02,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2024-11-28 04:01:02,063 INFO L175 Difference]: Start difference. First operand has 184 places, 240 transitions, 812 flow. Second operand 3 states and 499 transitions. [2024-11-28 04:01:02,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 246 transitions, 874 flow [2024-11-28 04:01:02,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:01:02,072 INFO L231 Difference]: Finished difference. Result has 187 places, 240 transitions, 823 flow [2024-11-28 04:01:02,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=187, PETRI_TRANSITIONS=240} [2024-11-28 04:01:02,074 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 8 predicate places. [2024-11-28 04:01:02,074 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 240 transitions, 823 flow [2024-11-28 04:01:02,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2024-11-28 04:01:02,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:02,074 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] [2024-11-28 04:01:02,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:01:02,075 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:01:02,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:02,075 INFO L85 PathProgramCache]: Analyzing trace with hash -860645096, now seen corresponding path program 1 times [2024-11-28 04:01:02,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721519279] [2024-11-28 04:01:02,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:02,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721519279] [2024-11-28 04:01:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721519279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:02,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285023457] [2024-11-28 04:01:02,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:02,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:02,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:02,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:02,144 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-28 04:01:02,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 240 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2024-11-28 04:01:02,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:02,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-28 04:01:02,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:02,332 INFO L124 PetriNetUnfolderBase]: 165/1028 cut-off events. [2024-11-28 04:01:02,332 INFO L125 PetriNetUnfolderBase]: For 109/128 co-relation queries the response was YES. [2024-11-28 04:01:02,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 1028 events. 165/1028 cut-off events. For 109/128 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6026 event pairs, 22 based on Foata normal form. 0/969 useless extension candidates. Maximal degree in co-relation 1701. Up to 253 conditions per place. [2024-11-28 04:01:02,338 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2024-11-28 04:01:02,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 242 transitions, 869 flow [2024-11-28 04:01:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2024-11-28 04:01:02,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8712522045855379 [2024-11-28 04:01:02,340 INFO L175 Difference]: Start difference. First operand has 187 places, 240 transitions, 823 flow. Second operand 3 states and 494 transitions. [2024-11-28 04:01:02,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 242 transitions, 869 flow [2024-11-28 04:01:02,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 242 transitions, 863 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:02,349 INFO L231 Difference]: Finished difference. Result has 185 places, 238 transitions, 815 flow [2024-11-28 04:01:02,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=185, PETRI_TRANSITIONS=238} [2024-11-28 04:01:02,350 INFO L279 CegarLoopForPetriNet]: 179 programPoint places, 6 predicate places. [2024-11-28 04:01:02,350 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 238 transitions, 815 flow [2024-11-28 04:01:02,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2024-11-28 04:01:02,350 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:02,351 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:02,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:01:02,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:01:02,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash -656471504, now seen corresponding path program 1 times [2024-11-28 04:01:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:02,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251746876] [2024-11-28 04:01:02,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:01:02,380 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:01:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:01:02,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:01:02,427 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:01:02,428 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-28 04:01:02,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-28 04:01:02,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-28 04:01:02,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-28 04:01:02,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-28 04:01:02,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-28 04:01:02,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-28 04:01:02,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-28 04:01:02,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-28 04:01:02,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-28 04:01:02,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-28 04:01:02,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-28 04:01:02,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-28 04:01:02,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:01:02,439 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:02,442 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:01:02,445 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:01:02,502 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:01:02,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 260 transitions, 536 flow [2024-11-28 04:01:02,579 INFO L124 PetriNetUnfolderBase]: 34/422 cut-off events. [2024-11-28 04:01:02,579 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:01:02,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 422 events. 34/422 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1602 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2024-11-28 04:01:02,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 260 transitions, 536 flow [2024-11-28 04:01:02,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 260 transitions, 536 flow [2024-11-28 04:01:02,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:01:02,591 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;@1bbe3f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:01:02,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-28 04:01:02,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:01:02,595 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-28 04:01:02,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:01:02,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:02,595 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] [2024-11-28 04:01:02,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:02,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:02,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1888201289, now seen corresponding path program 1 times [2024-11-28 04:01:02,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:02,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379056516] [2024-11-28 04:01:02,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:02,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:02,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379056516] [2024-11-28 04:01:02,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379056516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:02,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:02,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:02,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800978165] [2024-11-28 04:01:02,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:02,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:02,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:02,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:02,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:02,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-28 04:01:02,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 260 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2024-11-28 04:01:02,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:02,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-28 04:01:02,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:03,668 INFO L124 PetriNetUnfolderBase]: 610/5005 cut-off events. [2024-11-28 04:01:03,669 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-28 04:01:03,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6083 conditions, 5005 events. 610/5005 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46873 event pairs, 600 based on Foata normal form. 697/5202 useless extension candidates. Maximal degree in co-relation 5147. Up to 1033 conditions per place. [2024-11-28 04:01:03,707 INFO L140 encePairwiseOnDemand]: 239/260 looper letters, 26 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2024-11-28 04:01:03,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 239 transitions, 550 flow [2024-11-28 04:01:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-28 04:01:03,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8756410256410256 [2024-11-28 04:01:03,711 INFO L175 Difference]: Start difference. First operand has 245 places, 260 transitions, 536 flow. Second operand 3 states and 683 transitions. [2024-11-28 04:01:03,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 239 transitions, 550 flow [2024-11-28 04:01:03,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:01:03,719 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 498 flow [2024-11-28 04:01:03,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2024-11-28 04:01:03,722 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, -1 predicate places. [2024-11-28 04:01:03,722 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 498 flow [2024-11-28 04:01:03,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2024-11-28 04:01:03,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:03,726 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] [2024-11-28 04:01:03,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:01:03,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:03,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2085263380, now seen corresponding path program 1 times [2024-11-28 04:01:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:03,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452285360] [2024-11-28 04:01:03,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452285360] [2024-11-28 04:01:03,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452285360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:03,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:03,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:03,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187759086] [2024-11-28 04:01:03,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:03,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:03,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:03,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:03,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:03,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 260 [2024-11-28 04:01:03,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2024-11-28 04:01:03,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:03,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 260 [2024-11-28 04:01:03,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:04,674 INFO L124 PetriNetUnfolderBase]: 598/4939 cut-off events. [2024-11-28 04:01:04,675 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-28 04:01:04,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 4939 events. 598/4939 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 45934 event pairs, 594 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 5957. Up to 1011 conditions per place. [2024-11-28 04:01:04,714 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 24 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2024-11-28 04:01:04,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 544 flow [2024-11-28 04:01:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-11-28 04:01:04,716 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8576923076923076 [2024-11-28 04:01:04,717 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 498 flow. Second operand 3 states and 669 transitions. [2024-11-28 04:01:04,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 544 flow [2024-11-28 04:01:04,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:04,721 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 492 flow [2024-11-28 04:01:04,722 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2024-11-28 04:01:04,722 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-28 04:01:04,723 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 492 flow [2024-11-28 04:01:04,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2024-11-28 04:01:04,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:04,723 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] [2024-11-28 04:01:04,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:01:04,724 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:04,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1482174919, now seen corresponding path program 1 times [2024-11-28 04:01:04,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:04,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556366449] [2024-11-28 04:01:04,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:04,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:04,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556366449] [2024-11-28 04:01:04,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556366449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:04,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:04,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:04,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693853015] [2024-11-28 04:01:04,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:04,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:04,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:04,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:04,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:04,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 260 [2024-11-28 04:01:04,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-28 04:01:04,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:04,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 260 [2024-11-28 04:01:04,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:05,890 INFO L124 PetriNetUnfolderBase]: 868/5480 cut-off events. [2024-11-28 04:01:05,890 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-28 04:01:05,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6980 conditions, 5480 events. 868/5480 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 52358 event pairs, 856 based on Foata normal form. 0/4944 useless extension candidates. Maximal degree in co-relation 6941. Up to 1443 conditions per place. [2024-11-28 04:01:05,935 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 28 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2024-11-28 04:01:05,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 236 transitions, 550 flow [2024-11-28 04:01:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-11-28 04:01:05,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8474358974358974 [2024-11-28 04:01:05,938 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 492 flow. Second operand 3 states and 661 transitions. [2024-11-28 04:01:05,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 236 transitions, 550 flow [2024-11-28 04:01:05,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 236 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:01:05,942 INFO L231 Difference]: Finished difference. Result has 242 places, 236 transitions, 493 flow [2024-11-28 04:01:05,942 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=242, PETRI_TRANSITIONS=236} [2024-11-28 04:01:05,944 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-28 04:01:05,944 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 236 transitions, 493 flow [2024-11-28 04:01:05,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-28 04:01:05,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:05,945 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] [2024-11-28 04:01:05,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:01:05,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:05,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:05,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1968717402, now seen corresponding path program 1 times [2024-11-28 04:01:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:05,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670727108] [2024-11-28 04:01:05,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:05,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:06,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:06,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:06,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670727108] [2024-11-28 04:01:06,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670727108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:06,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:06,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:06,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938642354] [2024-11-28 04:01:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:06,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:01:06,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:06,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:01:06,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:01:06,703 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 260 [2024-11-28 04:01:06,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 236 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 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) [2024-11-28 04:01:06,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:06,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 260 [2024-11-28 04:01:06,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:14,769 INFO L124 PetriNetUnfolderBase]: 29149/69806 cut-off events. [2024-11-28 04:01:14,769 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2024-11-28 04:01:14,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115342 conditions, 69806 events. 29149/69806 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 786490 event pairs, 19147 based on Foata normal form. 0/65019 useless extension candidates. Maximal degree in co-relation 115303. Up to 40545 conditions per place. [2024-11-28 04:01:15,133 INFO L140 encePairwiseOnDemand]: 221/260 looper letters, 122 selfloop transitions, 134 changer transitions 0/418 dead transitions. [2024-11-28 04:01:15,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 418 transitions, 1374 flow [2024-11-28 04:01:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:01:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:01:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1259 transitions. [2024-11-28 04:01:15,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8070512820512821 [2024-11-28 04:01:15,137 INFO L175 Difference]: Start difference. First operand has 242 places, 236 transitions, 493 flow. Second operand 6 states and 1259 transitions. [2024-11-28 04:01:15,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 418 transitions, 1374 flow [2024-11-28 04:01:15,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 418 transitions, 1370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:01:15,149 INFO L231 Difference]: Finished difference. Result has 250 places, 369 transitions, 1367 flow [2024-11-28 04:01:15,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1367, PETRI_PLACES=250, PETRI_TRANSITIONS=369} [2024-11-28 04:01:15,151 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, 5 predicate places. [2024-11-28 04:01:15,151 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 369 transitions, 1367 flow [2024-11-28 04:01:15,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 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) [2024-11-28 04:01:15,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:15,152 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] [2024-11-28 04:01:15,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:01:15,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:15,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash 549443609, now seen corresponding path program 1 times [2024-11-28 04:01:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:15,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604275580] [2024-11-28 04:01:15,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:15,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:15,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:15,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604275580] [2024-11-28 04:01:15,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604275580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:15,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:15,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:15,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93624994] [2024-11-28 04:01:15,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:15,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:15,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:15,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:15,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:15,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-28 04:01:15,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 369 transitions, 1367 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-28 04:01:15,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:15,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-28 04:01:15,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:20,084 INFO L124 PetriNetUnfolderBase]: 10362/35619 cut-off events. [2024-11-28 04:01:20,088 INFO L125 PetriNetUnfolderBase]: For 5188/5618 co-relation queries the response was YES. [2024-11-28 04:01:20,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62281 conditions, 35619 events. 10362/35619 cut-off events. For 5188/5618 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 427808 event pairs, 5154 based on Foata normal form. 1/32369 useless extension candidates. Maximal degree in co-relation 62238. Up to 12427 conditions per place. [2024-11-28 04:01:20,398 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 32 selfloop transitions, 3 changer transitions 0/377 dead transitions. [2024-11-28 04:01:20,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 377 transitions, 1459 flow [2024-11-28 04:01:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-11-28 04:01:20,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2024-11-28 04:01:20,401 INFO L175 Difference]: Start difference. First operand has 250 places, 369 transitions, 1367 flow. Second operand 3 states and 679 transitions. [2024-11-28 04:01:20,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 377 transitions, 1459 flow [2024-11-28 04:01:20,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 377 transitions, 1459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:01:20,593 INFO L231 Difference]: Finished difference. Result has 253 places, 371 transitions, 1392 flow [2024-11-28 04:01:20,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1367, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1392, PETRI_PLACES=253, PETRI_TRANSITIONS=371} [2024-11-28 04:01:20,594 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, 8 predicate places. [2024-11-28 04:01:20,594 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 371 transitions, 1392 flow [2024-11-28 04:01:20,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-28 04:01:20,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:20,595 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] [2024-11-28 04:01:20,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:01:20,596 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:20,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:20,596 INFO L85 PathProgramCache]: Analyzing trace with hash 320926557, now seen corresponding path program 1 times [2024-11-28 04:01:20,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:20,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655026416] [2024-11-28 04:01:20,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:20,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:20,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655026416] [2024-11-28 04:01:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655026416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:20,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:01:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903361340] [2024-11-28 04:01:20,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:20,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:01:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:20,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:01:20,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:01:20,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-28 04:01:20,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 371 transitions, 1392 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2024-11-28 04:01:20,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:20,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-28 04:01:20,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:24,856 INFO L124 PetriNetUnfolderBase]: 10321/34268 cut-off events. [2024-11-28 04:01:24,857 INFO L125 PetriNetUnfolderBase]: For 4924/5407 co-relation queries the response was YES. [2024-11-28 04:01:24,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62061 conditions, 34268 events. 10321/34268 cut-off events. For 4924/5407 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 400784 event pairs, 4072 based on Foata normal form. 0/32293 useless extension candidates. Maximal degree in co-relation 62017. Up to 12349 conditions per place. [2024-11-28 04:01:25,047 INFO L140 encePairwiseOnDemand]: 254/260 looper letters, 38 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2024-11-28 04:01:25,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 378 transitions, 1491 flow [2024-11-28 04:01:25,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:01:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:01:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-11-28 04:01:25,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8564102564102564 [2024-11-28 04:01:25,050 INFO L175 Difference]: Start difference. First operand has 253 places, 371 transitions, 1392 flow. Second operand 3 states and 668 transitions. [2024-11-28 04:01:25,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 378 transitions, 1491 flow [2024-11-28 04:01:25,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 378 transitions, 1488 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:01:25,225 INFO L231 Difference]: Finished difference. Result has 251 places, 369 transitions, 1395 flow [2024-11-28 04:01:25,226 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1381, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1395, PETRI_PLACES=251, PETRI_TRANSITIONS=369} [2024-11-28 04:01:25,226 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, 6 predicate places. [2024-11-28 04:01:25,226 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 369 transitions, 1395 flow [2024-11-28 04:01:25,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2024-11-28 04:01:25,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:25,227 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] [2024-11-28 04:01:25,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:01:25,227 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:25,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1907047076, now seen corresponding path program 1 times [2024-11-28 04:01:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:25,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254739056] [2024-11-28 04:01:25,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:25,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:25,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254739056] [2024-11-28 04:01:25,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254739056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:25,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:25,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:25,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96750728] [2024-11-28 04:01:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:25,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:01:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:25,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:01:25,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:01:26,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 260 [2024-11-28 04:01:26,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 369 transitions, 1395 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2024-11-28 04:01:26,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:26,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 260 [2024-11-28 04:01:26,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:37,844 INFO L124 PetriNetUnfolderBase]: 39054/89144 cut-off events. [2024-11-28 04:01:37,844 INFO L125 PetriNetUnfolderBase]: For 33034/36832 co-relation queries the response was YES. [2024-11-28 04:01:38,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203627 conditions, 89144 events. 39054/89144 cut-off events. For 33034/36832 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 1027448 event pairs, 9835 based on Foata normal form. 47/85383 useless extension candidates. Maximal degree in co-relation 203582. Up to 36092 conditions per place. [2024-11-28 04:01:38,570 INFO L140 encePairwiseOnDemand]: 212/260 looper letters, 473 selfloop transitions, 219 changer transitions 0/860 dead transitions. [2024-11-28 04:01:38,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 860 transitions, 5009 flow [2024-11-28 04:01:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:01:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:01:38,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1364 transitions. [2024-11-28 04:01:38,576 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8743589743589744 [2024-11-28 04:01:38,576 INFO L175 Difference]: Start difference. First operand has 251 places, 369 transitions, 1395 flow. Second operand 6 states and 1364 transitions. [2024-11-28 04:01:38,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 860 transitions, 5009 flow [2024-11-28 04:01:38,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 860 transitions, 5009 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:01:38,913 INFO L231 Difference]: Finished difference. Result has 261 places, 600 transitions, 3711 flow [2024-11-28 04:01:38,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3711, PETRI_PLACES=261, PETRI_TRANSITIONS=600} [2024-11-28 04:01:38,914 INFO L279 CegarLoopForPetriNet]: 245 programPoint places, 16 predicate places. [2024-11-28 04:01:38,914 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 600 transitions, 3711 flow [2024-11-28 04:01:38,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2024-11-28 04:01:38,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:38,915 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] [2024-11-28 04:01:38,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:01:38,915 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 04:01:38,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash 451112209, now seen corresponding path program 1 times [2024-11-28 04:01:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:38,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134381295] [2024-11-28 04:01:38,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:39,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134381295] [2024-11-28 04:01:39,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134381295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:39,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:39,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118499549] [2024-11-28 04:01:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:39,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:39,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:39,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:39,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:39,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 260 [2024-11-28 04:01:39,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 600 transitions, 3711 flow. Second operand has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 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) [2024-11-28 04:01:39,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:39,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 260 [2024-11-28 04:01:39,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand