./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --witness-type violation_witness --validate ../results-verified/LOGDIR/SV-COMP24_no-data-race/ring_1w1r-1.yml/witness.graphml --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 194c01fd Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i ../results-verified/LOGDIR/SV-COMP24_no-data-race/ring_1w1r-1.yml/witness.graphml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.5-dev-194c01f-m [2024-10-29 15:21:43,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-29 15:21:43,181 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-29 15:21:43,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-29 15:21:43,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-29 15:21:43,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-29 15:21:43,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-29 15:21:43,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-29 15:21:43,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-29 15:21:43,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-29 15:21:43,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-29 15:21:43,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-29 15:21:43,217 INFO L153 SettingsManager]: * Use SBE=true [2024-10-29 15:21:43,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-29 15:21:43,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-29 15:21:43,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-29 15:21:43,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-29 15:21:43,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-29 15:21:43,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-29 15:21:43,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-29 15:21:43,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-29 15:21:43,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-29 15:21:43,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-29 15:21:43,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-29 15:21:43,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-29 15:21:43,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-29 15:21:43,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-29 15:21:43,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-29 15:21:43,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-29 15:21:43,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-29 15:21:43,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-29 15:21:43,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-10-29 15:21:43,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-29 15:21:43,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-29 15:21:43,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-29 15:21:43,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-29 15:21:43,440 INFO L274 PluginConnector]: CDTParser initialized [2024-10-29 15:21:43,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-10-29 15:21:44,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-29 15:21:45,084 INFO L384 CDTParser]: Found 1 translation units. [2024-10-29 15:21:45,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-10-29 15:21:45,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6626e974/f1bbf30a67b541718e7384f28f98b33c/FLAG6baad3c6b [2024-10-29 15:21:45,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6626e974/f1bbf30a67b541718e7384f28f98b33c [2024-10-29 15:21:45,152 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-29 15:21:45,157 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-29 15:21:45,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../results-verified/LOGDIR/SV-COMP24_no-data-race/ring_1w1r-1.yml/witness.graphml [2024-10-29 15:21:45,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-29 15:21:45,303 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-29 15:21:45,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-29 15:21:45,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-29 15:21:45,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-29 15:21:45,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:45" (1/2) ... [2024-10-29 15:21:45,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80f2afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:45, skipping insertion in model container [2024-10-29 15:21:45,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:45" (1/2) ... [2024-10-29 15:21:45,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d0280df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:45, skipping insertion in model container [2024-10-29 15:21:45,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.graphml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 29.10 03:21:45" (2/2) ... [2024-10-29 15:21:45,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80f2afd and model type witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:45, skipping insertion in model container [2024-10-29 15:21:45,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.graphml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 29.10 03:21:45" (2/2) ... [2024-10-29 15:21:45,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-29 15:21:46,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 15:21:46,059 INFO L200 MainTranslator]: Completed pre-run [2024-10-29 15:21:46,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-29 15:21:46,128 INFO L204 MainTranslator]: Completed translation [2024-10-29 15:21:46,128 INFO L201 PluginConnector]: Adding new model witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46 WrapperNode [2024-10-29 15:21:46,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-29 15:21:46,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-29 15:21:46,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-29 15:21:46,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-29 15:21:46,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,171 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 197 [2024-10-29 15:21:46,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-29 15:21:46,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-29 15:21:46,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-29 15:21:46,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-29 15:21:46,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-29 15:21:46,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-29 15:21:46,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-29 15:21:46,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-29 15:21:46,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (1/1) ... [2024-10-29 15:21:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-29 15:21:46,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-29 15:21:46,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-29 15:21:46,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-29 15:21:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-29 15:21:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-29 15:21:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-29 15:21:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-29 15:21:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-29 15:21:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-29 15:21:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2024-10-29 15:21:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2024-10-29 15:21:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-29 15:21:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-29 15:21:46,281 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-29 15:21:46,384 INFO L238 CfgBuilder]: Building ICFG [2024-10-29 15:21:46,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-29 15:21:46,705 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-29 15:21:46,706 INFO L287 CfgBuilder]: Performing block encoding [2024-10-29 15:21:46,718 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-29 15:21:46,718 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-29 15:21:46,718 INFO L201 PluginConnector]: Adding new model witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:46 BoogieIcfgContainer [2024-10-29 15:21:46,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-29 15:21:46,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-29 15:21:46,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-29 15:21:46,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-29 15:21:46,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:21:45" (1/4) ... [2024-10-29 15:21:46,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287c8720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:21:46, skipping insertion in model container [2024-10-29 15:21:46,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.graphml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 29.10 03:21:45" (2/4) ... [2024-10-29 15:21:46,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287c8720 and model type witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 29.10 03:21:46, skipping insertion in model container [2024-10-29 15:21:46,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 29.10 03:21:46" (3/4) ... [2024-10-29 15:21:46,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287c8720 and model type witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 29.10 03:21:46, skipping insertion in model container [2024-10-29 15:21:46,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.graphml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:46" (4/4) ... [2024-10-29 15:21:46,725 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2024-10-29 15:21:46,725 WARN L117 eAbstractionObserver]: Found a witness automaton. I will only consider traces that are accepted by the witness automaton [2024-10-29 15:21:46,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-29 15:21:46,743 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-29 15:21:46,743 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-29 15:21:46,826 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-29 15:21:46,849 WARN L158 CegarLoopFactory]: Violation witness validation is only supported for CEGAR loops based on FINITE_AUTOMATA. Ignoring concurrency settiong PETRI_NET and switching to FINITE_AUTOMATA. [2024-10-29 15:21:46,867 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 229 places, 237 transitions, 481 flow [2024-10-29 15:21:47,249 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7583 states, 7533 states have (on average 2.115093588211868) internal successors, (15933), 7582 states have internal predecessors, (15933), 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) [2024-10-29 15:21:47,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-29 15:21:47,296 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=None, 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;@62ba6855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-29 15:21:47,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-29 15:21:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 7583 states, 7533 states have (on average 2.115093588211868) internal successors, (15933), 7582 states have internal predecessors, (15933), 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) [2024-10-29 15:21:47,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-29 15:21:47,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:47,320 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:47,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:47,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:47,327 INFO L85 PathProgramCache]: Analyzing trace with hash 824070514, now seen corresponding path program 1 times [2024-10-29 15:21:47,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:47,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510383979] [2024-10-29 15:21:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:47,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510383979] [2024-10-29 15:21:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510383979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:47,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:47,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820895870] [2024-10-29 15:21:48,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:48,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:48,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:48,037 INFO L87 Difference]: Start difference. First operand has 7583 states, 7533 states have (on average 2.115093588211868) internal successors, (15933), 7582 states have internal predecessors, (15933), 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) Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-10-29 15:21:48,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:48,337 INFO L93 Difference]: Finished difference Result 14855 states and 31280 transitions. [2024-10-29 15:21:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:48,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) Word has length 27 [2024-10-29 15:21:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:48,485 INFO L225 Difference]: With dead ends: 14855 [2024-10-29 15:21:48,485 INFO L226 Difference]: Without dead ends: 7313 [2024-10-29 15:21:48,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:48,504 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 15 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:48,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 330 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-29 15:21:48,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2024-10-29 15:21:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7313. [2024-10-29 15:21:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7246 states have (on average 2.02566933480541) internal successors, (14678), 7312 states have internal predecessors, (14678), 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) [2024-10-29 15:21:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 14678 transitions. [2024-10-29 15:21:48,707 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 14678 transitions. Word has length 27 [2024-10-29 15:21:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:48,707 INFO L471 AbstractCegarLoop]: Abstraction has 7313 states and 14678 transitions. [2024-10-29 15:21:48,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-10-29 15:21:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 14678 transitions. [2024-10-29 15:21:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-29 15:21:48,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:48,708 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:48,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-29 15:21:48,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1711871567, now seen corresponding path program 1 times [2024-10-29 15:21:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135274371] [2024-10-29 15:21:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:48,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:48,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135274371] [2024-10-29 15:21:48,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135274371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:48,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:48,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:48,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394439555] [2024-10-29 15:21:48,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:48,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:48,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:48,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:49,000 INFO L87 Difference]: Start difference. First operand 7313 states and 14678 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-10-29 15:21:49,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:49,539 INFO L93 Difference]: Finished difference Result 7313 states and 14678 transitions. [2024-10-29 15:21:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:49,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) Word has length 34 [2024-10-29 15:21:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:49,623 INFO L225 Difference]: With dead ends: 7313 [2024-10-29 15:21:49,623 INFO L226 Difference]: Without dead ends: 7312 [2024-10-29 15:21:49,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:49,635 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 2 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:49,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 461 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-29 15:21:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2024-10-29 15:21:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7312. [2024-10-29 15:21:49,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 7246 states have (on average 2.0255313276290368) internal successors, (14677), 7311 states have internal predecessors, (14677), 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) [2024-10-29 15:21:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 14677 transitions. [2024-10-29 15:21:49,955 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 14677 transitions. Word has length 34 [2024-10-29 15:21:49,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:49,956 INFO L471 AbstractCegarLoop]: Abstraction has 7312 states and 14677 transitions. [2024-10-29 15:21:49,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-10-29 15:21:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 14677 transitions. [2024-10-29 15:21:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-29 15:21:49,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:49,961 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:49,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-29 15:21:49,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:49,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash -464323946, now seen corresponding path program 1 times [2024-10-29 15:21:49,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:49,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312311722] [2024-10-29 15:21:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:49,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:50,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:50,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312311722] [2024-10-29 15:21:50,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312311722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:50,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:50,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:50,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683837258] [2024-10-29 15:21:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:50,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:50,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:50,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:50,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:50,336 INFO L87 Difference]: Start difference. First operand 7312 states and 14677 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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) [2024-10-29 15:21:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:51,245 INFO L93 Difference]: Finished difference Result 9272 states and 18625 transitions. [2024-10-29 15:21:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:51,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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) Word has length 58 [2024-10-29 15:21:51,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:51,294 INFO L225 Difference]: With dead ends: 9272 [2024-10-29 15:21:51,294 INFO L226 Difference]: Without dead ends: 9116 [2024-10-29 15:21:51,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:51,303 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 231 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:51,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 961 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-29 15:21:51,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9116 states. [2024-10-29 15:21:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9116 to 7856. [2024-10-29 15:21:51,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7856 states, 7790 states have (on average 2.024775353016688) internal successors, (15773), 7855 states have internal predecessors, (15773), 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) [2024-10-29 15:21:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7856 states to 7856 states and 15773 transitions. [2024-10-29 15:21:51,625 INFO L78 Accepts]: Start accepts. Automaton has 7856 states and 15773 transitions. Word has length 58 [2024-10-29 15:21:51,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:51,626 INFO L471 AbstractCegarLoop]: Abstraction has 7856 states and 15773 transitions. [2024-10-29 15:21:51,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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) [2024-10-29 15:21:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7856 states and 15773 transitions. [2024-10-29 15:21:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-29 15:21:51,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:51,629 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:51,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-29 15:21:51,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:51,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:51,631 INFO L85 PathProgramCache]: Analyzing trace with hash -348864802, now seen corresponding path program 1 times [2024-10-29 15:21:51,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:51,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572484802] [2024-10-29 15:21:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:51,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:51,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:51,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572484802] [2024-10-29 15:21:51,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572484802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:51,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:51,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-29 15:21:51,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864709417] [2024-10-29 15:21:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:51,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-29 15:21:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:51,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-29 15:21:51,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-29 15:21:51,685 INFO L87 Difference]: Start difference. First operand 7856 states and 15773 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-10-29 15:21:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:51,765 INFO L93 Difference]: Finished difference Result 15202 states and 30562 transitions. [2024-10-29 15:21:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-29 15:21:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-10-29 15:21:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:51,812 INFO L225 Difference]: With dead ends: 15202 [2024-10-29 15:21:51,812 INFO L226 Difference]: Without dead ends: 12513 [2024-10-29 15:21:51,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-29 15:21:51,825 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 131 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:51,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 501 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-29 15:21:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12513 states. [2024-10-29 15:21:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12513 to 7934. [2024-10-29 15:21:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7868 states have (on average 2.0246568378240974) internal successors, (15930), 7933 states have internal predecessors, (15930), 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) [2024-10-29 15:21:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 15930 transitions. [2024-10-29 15:21:52,073 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 15930 transitions. Word has length 59 [2024-10-29 15:21:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:52,074 INFO L471 AbstractCegarLoop]: Abstraction has 7934 states and 15930 transitions. [2024-10-29 15:21:52,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-10-29 15:21:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 15930 transitions. [2024-10-29 15:21:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-29 15:21:52,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:52,076 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:52,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-29 15:21:52,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:52,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash -8247405, now seen corresponding path program 1 times [2024-10-29 15:21:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:52,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243730061] [2024-10-29 15:21:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:52,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:52,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243730061] [2024-10-29 15:21:52,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243730061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:52,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:52,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:52,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933946326] [2024-10-29 15:21:52,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:52,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:52,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:52,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:52,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:52,356 INFO L87 Difference]: Start difference. First operand 7934 states and 15930 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-10-29 15:21:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:52,821 INFO L93 Difference]: Finished difference Result 11798 states and 23746 transitions. [2024-10-29 15:21:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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) Word has length 61 [2024-10-29 15:21:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:52,853 INFO L225 Difference]: With dead ends: 11798 [2024-10-29 15:21:52,854 INFO L226 Difference]: Without dead ends: 11486 [2024-10-29 15:21:52,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:52,862 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 338 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:52,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 851 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-29 15:21:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2024-10-29 15:21:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 8942. [2024-10-29 15:21:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8882 states have (on average 2.020490880432335) internal successors, (17946), 8941 states have internal predecessors, (17946), 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) [2024-10-29 15:21:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 17946 transitions. [2024-10-29 15:21:53,050 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 17946 transitions. Word has length 61 [2024-10-29 15:21:53,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:53,051 INFO L471 AbstractCegarLoop]: Abstraction has 8942 states and 17946 transitions. [2024-10-29 15:21:53,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-10-29 15:21:53,051 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 17946 transitions. [2024-10-29 15:21:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-29 15:21:53,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:53,053 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:53,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-29 15:21:53,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:53,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash -856788738, now seen corresponding path program 1 times [2024-10-29 15:21:53,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:53,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447651687] [2024-10-29 15:21:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:53,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:53,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:53,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447651687] [2024-10-29 15:21:53,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447651687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:53,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:53,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:53,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229374509] [2024-10-29 15:21:53,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:53,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:53,368 INFO L87 Difference]: Start difference. First operand 8942 states and 17946 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2024-10-29 15:21:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:53,876 INFO L93 Difference]: Finished difference Result 9411 states and 18891 transitions. [2024-10-29 15:21:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:53,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) Word has length 64 [2024-10-29 15:21:53,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:53,903 INFO L225 Difference]: With dead ends: 9411 [2024-10-29 15:21:53,903 INFO L226 Difference]: Without dead ends: 9321 [2024-10-29 15:21:53,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:53,909 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 224 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:53,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 805 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-29 15:21:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9321 states. [2024-10-29 15:21:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9321 to 9187. [2024-10-29 15:21:54,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 9130 states have (on average 2.019715224534502) internal successors, (18440), 9186 states have internal predecessors, (18440), 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) [2024-10-29 15:21:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 18440 transitions. [2024-10-29 15:21:54,063 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 18440 transitions. Word has length 64 [2024-10-29 15:21:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:54,063 INFO L471 AbstractCegarLoop]: Abstraction has 9187 states and 18440 transitions. [2024-10-29 15:21:54,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2024-10-29 15:21:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 18440 transitions. [2024-10-29 15:21:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-29 15:21:54,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:54,065 INFO L215 NwaCegarLoop]: 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] [2024-10-29 15:21:54,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-29 15:21:54,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:54,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1158210824, now seen corresponding path program 1 times [2024-10-29 15:21:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:54,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282888285] [2024-10-29 15:21:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:54,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:54,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282888285] [2024-10-29 15:21:54,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282888285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:54,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:54,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:54,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051377504] [2024-10-29 15:21:54,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:54,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:54,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:54,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:54,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:54,280 INFO L87 Difference]: Start difference. First operand 9187 states and 18440 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-10-29 15:21:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:54,783 INFO L93 Difference]: Finished difference Result 12028 states and 24209 transitions. [2024-10-29 15:21:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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) Word has length 67 [2024-10-29 15:21:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:54,814 INFO L225 Difference]: With dead ends: 12028 [2024-10-29 15:21:54,815 INFO L226 Difference]: Without dead ends: 11920 [2024-10-29 15:21:54,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:54,821 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 312 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:54,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1047 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-29 15:21:54,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11920 states. [2024-10-29 15:21:55,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11920 to 9514. [2024-10-29 15:21:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9514 states, 9460 states have (on average 2.0183932346723044) internal successors, (19094), 9513 states have internal predecessors, (19094), 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) [2024-10-29 15:21:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9514 states to 9514 states and 19094 transitions. [2024-10-29 15:21:55,103 INFO L78 Accepts]: Start accepts. Automaton has 9514 states and 19094 transitions. Word has length 67 [2024-10-29 15:21:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:55,103 INFO L471 AbstractCegarLoop]: Abstraction has 9514 states and 19094 transitions. [2024-10-29 15:21:55,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-10-29 15:21:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9514 states and 19094 transitions. [2024-10-29 15:21:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-29 15:21:55,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:55,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:21:55,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-29 15:21:55,106 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:55,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:55,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1378030033, now seen corresponding path program 1 times [2024-10-29 15:21:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:55,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993172403] [2024-10-29 15:21:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:55,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:55,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993172403] [2024-10-29 15:21:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993172403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:55,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:55,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:55,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543402250] [2024-10-29 15:21:55,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:55,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:55,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:55,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:55,479 INFO L87 Difference]: Start difference. First operand 9514 states and 19094 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-10-29 15:21:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:55,786 INFO L93 Difference]: Finished difference Result 10040 states and 20137 transitions. [2024-10-29 15:21:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:55,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 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) Word has length 80 [2024-10-29 15:21:55,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:55,817 INFO L225 Difference]: With dead ends: 10040 [2024-10-29 15:21:55,818 INFO L226 Difference]: Without dead ends: 9946 [2024-10-29 15:21:55,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:55,824 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 224 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:55,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 722 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-29 15:21:55,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9946 states. [2024-10-29 15:21:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9946 to 9782. [2024-10-29 15:21:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9728 states have (on average 2.0182976973684212) internal successors, (19634), 9781 states have internal predecessors, (19634), 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) [2024-10-29 15:21:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 19634 transitions. [2024-10-29 15:21:55,996 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 19634 transitions. Word has length 80 [2024-10-29 15:21:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:55,997 INFO L471 AbstractCegarLoop]: Abstraction has 9782 states and 19634 transitions. [2024-10-29 15:21:55,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-10-29 15:21:55,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 19634 transitions. [2024-10-29 15:21:55,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-29 15:21:55,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:55,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:21:56,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-29 15:21:56,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:56,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash 481416421, now seen corresponding path program 1 times [2024-10-29 15:21:56,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:56,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842307971] [2024-10-29 15:21:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:56,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:56,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:56,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842307971] [2024-10-29 15:21:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842307971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-29 15:21:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777702495] [2024-10-29 15:21:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:56,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-29 15:21:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-29 15:21:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:56,426 INFO L87 Difference]: Start difference. First operand 9782 states and 19634 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-10-29 15:21:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:21:56,906 INFO L93 Difference]: Finished difference Result 10346 states and 20746 transitions. [2024-10-29 15:21:56,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-29 15:21:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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) Word has length 83 [2024-10-29 15:21:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:21:56,936 INFO L225 Difference]: With dead ends: 10346 [2024-10-29 15:21:56,937 INFO L226 Difference]: Without dead ends: 10234 [2024-10-29 15:21:56,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-29 15:21:56,944 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 286 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:21:56,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 922 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-29 15:21:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10234 states. [2024-10-29 15:21:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10234 to 10132. [2024-10-29 15:21:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10132 states, 10078 states have (on average 2.017662234570351) internal successors, (20334), 10131 states have internal predecessors, (20334), 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) [2024-10-29 15:21:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10132 states to 10132 states and 20334 transitions. [2024-10-29 15:21:57,166 INFO L78 Accepts]: Start accepts. Automaton has 10132 states and 20334 transitions. Word has length 83 [2024-10-29 15:21:57,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:21:57,168 INFO L471 AbstractCegarLoop]: Abstraction has 10132 states and 20334 transitions. [2024-10-29 15:21:57,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-10-29 15:21:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 10132 states and 20334 transitions. [2024-10-29 15:21:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:21:57,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:21:57,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:21:57,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-29 15:21:57,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:21:57,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:21:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash -885458192, now seen corresponding path program 1 times [2024-10-29 15:21:57,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:21:57,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982088538] [2024-10-29 15:21:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:21:57,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:21:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:21:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:21:58,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:21:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982088538] [2024-10-29 15:21:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982088538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:21:58,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:21:58,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:21:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983158530] [2024-10-29 15:21:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:21:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:21:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:21:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:21:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:21:58,175 INFO L87 Difference]: Start difference. First operand 10132 states and 20334 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:00,280 INFO L93 Difference]: Finished difference Result 18529 states and 37294 transitions. [2024-10-29 15:22:00,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-29 15:22:00,280 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:00,329 INFO L225 Difference]: With dead ends: 18529 [2024-10-29 15:22:00,329 INFO L226 Difference]: Without dead ends: 18464 [2024-10-29 15:22:00,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2024-10-29 15:22:00,340 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 1290 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:00,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 3883 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2024-10-29 15:22:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 10238. [2024-10-29 15:22:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10238 states, 10184 states have (on average 2.017576590730558) internal successors, (20547), 10237 states have internal predecessors, (20547), 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) [2024-10-29 15:22:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10238 states to 10238 states and 20547 transitions. [2024-10-29 15:22:00,544 INFO L78 Accepts]: Start accepts. Automaton has 10238 states and 20547 transitions. Word has length 95 [2024-10-29 15:22:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:00,545 INFO L471 AbstractCegarLoop]: Abstraction has 10238 states and 20547 transitions. [2024-10-29 15:22:00,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:00,545 INFO L276 IsEmpty]: Start isEmpty. Operand 10238 states and 20547 transitions. [2024-10-29 15:22:00,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:00,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:00,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:00,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-29 15:22:00,550 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:00,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:00,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1829694010, now seen corresponding path program 2 times [2024-10-29 15:22:00,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:00,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056706588] [2024-10-29 15:22:00,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:00,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056706588] [2024-10-29 15:22:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056706588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:01,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:01,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508397820] [2024-10-29 15:22:01,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:01,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:01,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:01,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:01,317 INFO L87 Difference]: Start difference. First operand 10238 states and 20547 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:03,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:03,736 INFO L93 Difference]: Finished difference Result 18593 states and 37427 transitions. [2024-10-29 15:22:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-29 15:22:03,737 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:03,776 INFO L225 Difference]: With dead ends: 18593 [2024-10-29 15:22:03,777 INFO L226 Difference]: Without dead ends: 18528 [2024-10-29 15:22:03,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=314, Invalid=742, Unknown=0, NotChecked=0, Total=1056 [2024-10-29 15:22:03,785 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 1386 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:03,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 4856 Invalid, 3327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3302 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-29 15:22:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18528 states. [2024-10-29 15:22:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18528 to 10239. [2024-10-29 15:22:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10239 states, 10185 states have (on average 2.0175748649975453) internal successors, (20549), 10238 states have internal predecessors, (20549), 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) [2024-10-29 15:22:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10239 states to 10239 states and 20549 transitions. [2024-10-29 15:22:04,060 INFO L78 Accepts]: Start accepts. Automaton has 10239 states and 20549 transitions. Word has length 95 [2024-10-29 15:22:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:04,060 INFO L471 AbstractCegarLoop]: Abstraction has 10239 states and 20549 transitions. [2024-10-29 15:22:04,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 10239 states and 20549 transitions. [2024-10-29 15:22:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:04,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:04,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:04,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-29 15:22:04,065 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:04,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:04,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1477785262, now seen corresponding path program 3 times [2024-10-29 15:22:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127598728] [2024-10-29 15:22:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:04,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:04,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127598728] [2024-10-29 15:22:04,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127598728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:04,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:04,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016473161] [2024-10-29 15:22:04,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:04,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:04,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:04,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:04,699 INFO L87 Difference]: Start difference. First operand 10239 states and 20549 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:06,879 INFO L93 Difference]: Finished difference Result 18571 states and 37380 transitions. [2024-10-29 15:22:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-29 15:22:06,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:06,930 INFO L225 Difference]: With dead ends: 18571 [2024-10-29 15:22:06,930 INFO L226 Difference]: Without dead ends: 18506 [2024-10-29 15:22:06,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=338, Invalid=784, Unknown=0, NotChecked=0, Total=1122 [2024-10-29 15:22:06,941 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 1395 mSDsluCounter, 3386 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:06,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 4043 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18506 states. [2024-10-29 15:22:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18506 to 10242. [2024-10-29 15:22:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10242 states, 10188 states have (on average 2.0176678445229683) internal successors, (20556), 10241 states have internal predecessors, (20556), 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) [2024-10-29 15:22:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10242 states to 10242 states and 20556 transitions. [2024-10-29 15:22:07,206 INFO L78 Accepts]: Start accepts. Automaton has 10242 states and 20556 transitions. Word has length 95 [2024-10-29 15:22:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:07,206 INFO L471 AbstractCegarLoop]: Abstraction has 10242 states and 20556 transitions. [2024-10-29 15:22:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 10242 states and 20556 transitions. [2024-10-29 15:22:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:07,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:07,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:07,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-29 15:22:07,212 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:07,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:07,212 INFO L85 PathProgramCache]: Analyzing trace with hash 412720594, now seen corresponding path program 4 times [2024-10-29 15:22:07,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:07,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210892798] [2024-10-29 15:22:07,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:07,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:08,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:08,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210892798] [2024-10-29 15:22:08,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210892798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:08,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:08,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:08,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072845236] [2024-10-29 15:22:08,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:08,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:08,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:08,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:08,025 INFO L87 Difference]: Start difference. First operand 10242 states and 20556 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:10,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:10,514 INFO L93 Difference]: Finished difference Result 18562 states and 37361 transitions. [2024-10-29 15:22:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-29 15:22:10,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:10,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:10,556 INFO L225 Difference]: With dead ends: 18562 [2024-10-29 15:22:10,557 INFO L226 Difference]: Without dead ends: 18497 [2024-10-29 15:22:10,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=363, Invalid=827, Unknown=0, NotChecked=0, Total=1190 [2024-10-29 15:22:10,565 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 1311 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:10,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 4498 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-29 15:22:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18497 states. [2024-10-29 15:22:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18497 to 10244. [2024-10-29 15:22:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10244 states, 10190 states have (on average 2.017664376840039) internal successors, (20560), 10243 states have internal predecessors, (20560), 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) [2024-10-29 15:22:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 20560 transitions. [2024-10-29 15:22:10,792 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 20560 transitions. Word has length 95 [2024-10-29 15:22:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:10,793 INFO L471 AbstractCegarLoop]: Abstraction has 10244 states and 20560 transitions. [2024-10-29 15:22:10,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 20560 transitions. [2024-10-29 15:22:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:10,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:10,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:10,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-29 15:22:10,801 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:10,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:10,801 INFO L85 PathProgramCache]: Analyzing trace with hash 461238834, now seen corresponding path program 5 times [2024-10-29 15:22:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65917649] [2024-10-29 15:22:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:11,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65917649] [2024-10-29 15:22:11,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65917649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:11,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:11,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488568564] [2024-10-29 15:22:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:11,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:11,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:11,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:11,545 INFO L87 Difference]: Start difference. First operand 10244 states and 20560 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:14,180 INFO L93 Difference]: Finished difference Result 18577 states and 37391 transitions. [2024-10-29 15:22:14,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-29 15:22:14,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:14,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:14,227 INFO L225 Difference]: With dead ends: 18577 [2024-10-29 15:22:14,227 INFO L226 Difference]: Without dead ends: 18507 [2024-10-29 15:22:14,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=389, Invalid=871, Unknown=0, NotChecked=0, Total=1260 [2024-10-29 15:22:14,236 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1386 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 3463 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 4818 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:14,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 4818 Invalid, 3507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3463 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-29 15:22:14,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2024-10-29 15:22:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 10254. [2024-10-29 15:22:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10254 states, 10200 states have (on average 2.0176470588235293) internal successors, (20580), 10253 states have internal predecessors, (20580), 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) [2024-10-29 15:22:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10254 states to 10254 states and 20580 transitions. [2024-10-29 15:22:14,611 INFO L78 Accepts]: Start accepts. Automaton has 10254 states and 20580 transitions. Word has length 95 [2024-10-29 15:22:14,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:14,612 INFO L471 AbstractCegarLoop]: Abstraction has 10254 states and 20580 transitions. [2024-10-29 15:22:14,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10254 states and 20580 transitions. [2024-10-29 15:22:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:14,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:14,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:14,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-29 15:22:14,623 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:14,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1670874640, now seen corresponding path program 6 times [2024-10-29 15:22:14,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:14,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544865497] [2024-10-29 15:22:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:14,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:15,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:15,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544865497] [2024-10-29 15:22:15,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544865497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:15,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:15,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:15,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310252717] [2024-10-29 15:22:15,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:15,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:15,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:15,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:15,269 INFO L87 Difference]: Start difference. First operand 10254 states and 20580 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:16,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:16,794 INFO L93 Difference]: Finished difference Result 18635 states and 37513 transitions. [2024-10-29 15:22:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-29 15:22:16,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:16,846 INFO L225 Difference]: With dead ends: 18635 [2024-10-29 15:22:16,846 INFO L226 Difference]: Without dead ends: 18570 [2024-10-29 15:22:16,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2024-10-29 15:22:16,860 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1292 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:16,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 3696 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-29 15:22:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18570 states. [2024-10-29 15:22:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18570 to 10256. [2024-10-29 15:22:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10256 states, 10202 states have (on average 2.017643599294256) internal successors, (20584), 10255 states have internal predecessors, (20584), 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) [2024-10-29 15:22:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10256 states to 10256 states and 20584 transitions. [2024-10-29 15:22:17,095 INFO L78 Accepts]: Start accepts. Automaton has 10256 states and 20584 transitions. Word has length 95 [2024-10-29 15:22:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:17,096 INFO L471 AbstractCegarLoop]: Abstraction has 10256 states and 20584 transitions. [2024-10-29 15:22:17,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10256 states and 20584 transitions. [2024-10-29 15:22:17,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:17,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:17,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:17,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-29 15:22:17,108 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:17,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1318965892, now seen corresponding path program 7 times [2024-10-29 15:22:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902874699] [2024-10-29 15:22:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:17,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:17,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:17,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902874699] [2024-10-29 15:22:17,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902874699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:17,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:17,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473247897] [2024-10-29 15:22:17,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:17,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:17,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:17,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:17,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:17,705 INFO L87 Difference]: Start difference. First operand 10256 states and 20584 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:19,367 INFO L93 Difference]: Finished difference Result 18676 states and 37597 transitions. [2024-10-29 15:22:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-29 15:22:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:19,404 INFO L225 Difference]: With dead ends: 18676 [2024-10-29 15:22:19,405 INFO L226 Difference]: Without dead ends: 18611 [2024-10-29 15:22:19,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=334, Invalid=788, Unknown=0, NotChecked=0, Total=1122 [2024-10-29 15:22:19,413 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 1385 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:19,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 3733 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-29 15:22:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18611 states. [2024-10-29 15:22:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18611 to 10259. [2024-10-29 15:22:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10259 states, 10205 states have (on average 2.017736403723665) internal successors, (20591), 10258 states have internal predecessors, (20591), 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) [2024-10-29 15:22:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10259 states to 10259 states and 20591 transitions. [2024-10-29 15:22:19,601 INFO L78 Accepts]: Start accepts. Automaton has 10259 states and 20591 transitions. Word has length 95 [2024-10-29 15:22:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:19,601 INFO L471 AbstractCegarLoop]: Abstraction has 10259 states and 20591 transitions. [2024-10-29 15:22:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 10259 states and 20591 transitions. [2024-10-29 15:22:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:19,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:19,605 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:19,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-29 15:22:19,605 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:19,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 571539964, now seen corresponding path program 8 times [2024-10-29 15:22:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:19,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485329722] [2024-10-29 15:22:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:19,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:20,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:20,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485329722] [2024-10-29 15:22:20,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485329722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145242243] [2024-10-29 15:22:20,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:20,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:20,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:20,123 INFO L87 Difference]: Start difference. First operand 10259 states and 20591 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:22,360 INFO L93 Difference]: Finished difference Result 18667 states and 37578 transitions. [2024-10-29 15:22:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-29 15:22:22,361 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:22,401 INFO L225 Difference]: With dead ends: 18667 [2024-10-29 15:22:22,402 INFO L226 Difference]: Without dead ends: 18602 [2024-10-29 15:22:22,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=359, Invalid=831, Unknown=0, NotChecked=0, Total=1190 [2024-10-29 15:22:22,410 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1414 mSDsluCounter, 4391 mSDsCounter, 0 mSdLazyCounter, 3518 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 5021 SdHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:22,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 5021 Invalid, 3557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3518 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-29 15:22:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18602 states. [2024-10-29 15:22:22,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18602 to 10261. [2024-10-29 15:22:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10261 states, 10207 states have (on average 2.0177329283824825) internal successors, (20595), 10260 states have internal predecessors, (20595), 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) [2024-10-29 15:22:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10261 states to 10261 states and 20595 transitions. [2024-10-29 15:22:22,596 INFO L78 Accepts]: Start accepts. Automaton has 10261 states and 20595 transitions. Word has length 95 [2024-10-29 15:22:22,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:22,596 INFO L471 AbstractCegarLoop]: Abstraction has 10261 states and 20595 transitions. [2024-10-29 15:22:22,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 10261 states and 20595 transitions. [2024-10-29 15:22:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:22,600 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:22,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:22,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-29 15:22:22,600 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:22,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:22,601 INFO L85 PathProgramCache]: Analyzing trace with hash 620058204, now seen corresponding path program 9 times [2024-10-29 15:22:22,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:22,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692539273] [2024-10-29 15:22:22,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:22,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:23,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:23,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692539273] [2024-10-29 15:22:23,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692539273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:23,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:23,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905539065] [2024-10-29 15:22:23,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:23,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:23,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:23,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:23,096 INFO L87 Difference]: Start difference. First operand 10261 states and 20595 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:25,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:25,248 INFO L93 Difference]: Finished difference Result 18682 states and 37608 transitions. [2024-10-29 15:22:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-29 15:22:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:25,296 INFO L225 Difference]: With dead ends: 18682 [2024-10-29 15:22:25,297 INFO L226 Difference]: Without dead ends: 18612 [2024-10-29 15:22:25,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=385, Invalid=875, Unknown=0, NotChecked=0, Total=1260 [2024-10-29 15:22:25,305 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1298 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:25,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 4644 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3132 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18612 states. [2024-10-29 15:22:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18612 to 10255. [2024-10-29 15:22:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10255 states, 10201 states have (on average 2.0176453288893246) internal successors, (20582), 10254 states have internal predecessors, (20582), 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) [2024-10-29 15:22:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10255 states to 10255 states and 20582 transitions. [2024-10-29 15:22:25,652 INFO L78 Accepts]: Start accepts. Automaton has 10255 states and 20582 transitions. Word has length 95 [2024-10-29 15:22:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:25,652 INFO L471 AbstractCegarLoop]: Abstraction has 10255 states and 20582 transitions. [2024-10-29 15:22:25,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 10255 states and 20582 transitions. [2024-10-29 15:22:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:25,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:25,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:25,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-29 15:22:25,658 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:25,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1368662514, now seen corresponding path program 10 times [2024-10-29 15:22:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:25,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981521046] [2024-10-29 15:22:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981521046] [2024-10-29 15:22:26,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981521046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:26,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:26,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:26,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803429987] [2024-10-29 15:22:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:26,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:26,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:26,407 INFO L87 Difference]: Start difference. First operand 10255 states and 20582 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:28,828 INFO L93 Difference]: Finished difference Result 18612 states and 37464 transitions. [2024-10-29 15:22:28,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-29 15:22:28,829 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:28,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:28,872 INFO L225 Difference]: With dead ends: 18612 [2024-10-29 15:22:28,873 INFO L226 Difference]: Without dead ends: 18547 [2024-10-29 15:22:28,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=333, Invalid=789, Unknown=0, NotChecked=0, Total=1122 [2024-10-29 15:22:28,881 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1266 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 4699 SdHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:28,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 4699 Invalid, 3299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-29 15:22:28,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18547 states. [2024-10-29 15:22:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18547 to 10261. [2024-10-29 15:22:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10261 states, 10207 states have (on average 2.017830900362496) internal successors, (20596), 10260 states have internal predecessors, (20596), 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) [2024-10-29 15:22:29,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10261 states to 10261 states and 20596 transitions. [2024-10-29 15:22:29,088 INFO L78 Accepts]: Start accepts. Automaton has 10261 states and 20596 transitions. Word has length 95 [2024-10-29 15:22:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:29,089 INFO L471 AbstractCegarLoop]: Abstraction has 10261 states and 20596 transitions. [2024-10-29 15:22:29,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10261 states and 20596 transitions. [2024-10-29 15:22:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:29,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:29,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:29,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-29 15:22:29,093 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:29,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:29,093 INFO L85 PathProgramCache]: Analyzing trace with hash 521843342, now seen corresponding path program 11 times [2024-10-29 15:22:29,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:29,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909170260] [2024-10-29 15:22:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:29,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:29,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909170260] [2024-10-29 15:22:29,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909170260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:29,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:29,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597724982] [2024-10-29 15:22:29,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:29,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:29,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:29,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:29,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:29,765 INFO L87 Difference]: Start difference. First operand 10261 states and 20596 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:31,937 INFO L93 Difference]: Finished difference Result 18637 states and 37514 transitions. [2024-10-29 15:22:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-29 15:22:31,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:31,979 INFO L225 Difference]: With dead ends: 18637 [2024-10-29 15:22:31,979 INFO L226 Difference]: Without dead ends: 18572 [2024-10-29 15:22:31,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=357, Invalid=833, Unknown=0, NotChecked=0, Total=1190 [2024-10-29 15:22:31,989 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1278 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 2653 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:31,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 4296 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2653 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-29 15:22:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18572 states. [2024-10-29 15:22:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18572 to 10263. [2024-10-29 15:22:32,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10263 states, 10209 states have (on average 2.0178274071897344) internal successors, (20600), 10262 states have internal predecessors, (20600), 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) [2024-10-29 15:22:32,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10263 states to 10263 states and 20600 transitions. [2024-10-29 15:22:32,197 INFO L78 Accepts]: Start accepts. Automaton has 10263 states and 20600 transitions. Word has length 95 [2024-10-29 15:22:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:32,198 INFO L471 AbstractCegarLoop]: Abstraction has 10263 states and 20600 transitions. [2024-10-29 15:22:32,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 10263 states and 20600 transitions. [2024-10-29 15:22:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:32,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:32,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:32,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-29 15:22:32,201 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:32,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:32,202 INFO L85 PathProgramCache]: Analyzing trace with hash 570361582, now seen corresponding path program 12 times [2024-10-29 15:22:32,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:32,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336632568] [2024-10-29 15:22:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:32,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:32,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336632568] [2024-10-29 15:22:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336632568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:32,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:32,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:32,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838838907] [2024-10-29 15:22:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:32,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:32,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:32,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:32,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:32,701 INFO L87 Difference]: Start difference. First operand 10263 states and 20600 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:34,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:34,942 INFO L93 Difference]: Finished difference Result 18652 states and 37544 transitions. [2024-10-29 15:22:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-29 15:22:34,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:34,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:34,986 INFO L225 Difference]: With dead ends: 18652 [2024-10-29 15:22:34,986 INFO L226 Difference]: Without dead ends: 18582 [2024-10-29 15:22:34,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=383, Invalid=877, Unknown=0, NotChecked=0, Total=1260 [2024-10-29 15:22:34,994 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 1284 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 4326 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:34,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 4326 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18582 states. [2024-10-29 15:22:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18582 to 10258. [2024-10-29 15:22:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10258 states, 10204 states have (on average 2.0177381419051352) internal successors, (20589), 10257 states have internal predecessors, (20589), 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) [2024-10-29 15:22:35,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10258 states to 10258 states and 20589 transitions. [2024-10-29 15:22:35,199 INFO L78 Accepts]: Start accepts. Automaton has 10258 states and 20589 transitions. Word has length 95 [2024-10-29 15:22:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:35,200 INFO L471 AbstractCegarLoop]: Abstraction has 10258 states and 20589 transitions. [2024-10-29 15:22:35,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:35,200 INFO L276 IsEmpty]: Start isEmpty. Operand 10258 states and 20589 transitions. [2024-10-29 15:22:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:35,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:35,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:35,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-29 15:22:35,203 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:35,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:35,204 INFO L85 PathProgramCache]: Analyzing trace with hash -246811664, now seen corresponding path program 13 times [2024-10-29 15:22:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317303194] [2024-10-29 15:22:35,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:35,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:35,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:35,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317303194] [2024-10-29 15:22:35,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317303194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:35,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:35,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:35,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558207239] [2024-10-29 15:22:35,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:35,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:35,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:35,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:35,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:35,734 INFO L87 Difference]: Start difference. First operand 10258 states and 20589 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:38,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:38,029 INFO L93 Difference]: Finished difference Result 18589 states and 37417 transitions. [2024-10-29 15:22:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-29 15:22:38,029 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:38,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:38,070 INFO L225 Difference]: With dead ends: 18589 [2024-10-29 15:22:38,071 INFO L226 Difference]: Without dead ends: 18524 [2024-10-29 15:22:38,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=356, Invalid=834, Unknown=0, NotChecked=0, Total=1190 [2024-10-29 15:22:38,079 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1263 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 2724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:38,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 4288 Invalid, 2724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:38,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18524 states. [2024-10-29 15:22:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18524 to 10262. [2024-10-29 15:22:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10262 states, 10208 states have (on average 2.0177311912225706) internal successors, (20597), 10261 states have internal predecessors, (20597), 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) [2024-10-29 15:22:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10262 states to 10262 states and 20597 transitions. [2024-10-29 15:22:38,273 INFO L78 Accepts]: Start accepts. Automaton has 10262 states and 20597 transitions. Word has length 95 [2024-10-29 15:22:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:38,273 INFO L471 AbstractCegarLoop]: Abstraction has 10262 states and 20597 transitions. [2024-10-29 15:22:38,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 10262 states and 20597 transitions. [2024-10-29 15:22:38,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:38,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:38,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:38,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-29 15:22:38,277 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:38,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:38,277 INFO L85 PathProgramCache]: Analyzing trace with hash -198293424, now seen corresponding path program 14 times [2024-10-29 15:22:38,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:38,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941693061] [2024-10-29 15:22:38,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:38,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:38,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:38,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941693061] [2024-10-29 15:22:38,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941693061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:38,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916056205] [2024-10-29 15:22:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:38,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:38,778 INFO L87 Difference]: Start difference. First operand 10262 states and 20597 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:40,975 INFO L93 Difference]: Finished difference Result 18627 states and 37493 transitions. [2024-10-29 15:22:40,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-29 15:22:40,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:41,022 INFO L225 Difference]: With dead ends: 18627 [2024-10-29 15:22:41,022 INFO L226 Difference]: Without dead ends: 18557 [2024-10-29 15:22:41,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=381, Invalid=879, Unknown=0, NotChecked=0, Total=1260 [2024-10-29 15:22:41,030 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 1348 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:41,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 4012 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-29 15:22:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18557 states. [2024-10-29 15:22:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18557 to 10260. [2024-10-29 15:22:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10260 states, 10206 states have (on average 2.017734665882814) internal successors, (20593), 10259 states have internal predecessors, (20593), 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) [2024-10-29 15:22:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10260 states to 10260 states and 20593 transitions. [2024-10-29 15:22:41,236 INFO L78 Accepts]: Start accepts. Automaton has 10260 states and 20593 transitions. Word has length 95 [2024-10-29 15:22:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:41,239 INFO L471 AbstractCegarLoop]: Abstraction has 10260 states and 20593 transitions. [2024-10-29 15:22:41,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 10260 states and 20593 transitions. [2024-10-29 15:22:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:41,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:41,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:41,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-29 15:22:41,248 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:41,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1275014096, now seen corresponding path program 15 times [2024-10-29 15:22:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:41,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261326013] [2024-10-29 15:22:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:41,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:42,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:42,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261326013] [2024-10-29 15:22:42,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261326013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:42,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:42,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:42,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888331951] [2024-10-29 15:22:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:42,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:42,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:42,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:42,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:42,126 INFO L87 Difference]: Start difference. First operand 10260 states and 20593 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:44,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:44,594 INFO L93 Difference]: Finished difference Result 18613 states and 37465 transitions. [2024-10-29 15:22:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-29 15:22:44,595 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:44,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:44,639 INFO L225 Difference]: With dead ends: 18613 [2024-10-29 15:22:44,640 INFO L226 Difference]: Without dead ends: 18543 [2024-10-29 15:22:44,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=380, Invalid=880, Unknown=0, NotChecked=0, Total=1260 [2024-10-29 15:22:44,649 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 1269 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 3322 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:44,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 4588 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3322 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-29 15:22:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18543 states. [2024-10-29 15:22:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18543 to 10270. [2024-10-29 15:22:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10270 states, 10216 states have (on average 2.0177173061863742) internal successors, (20613), 10269 states have internal predecessors, (20613), 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) [2024-10-29 15:22:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10270 states to 10270 states and 20613 transitions. [2024-10-29 15:22:44,864 INFO L78 Accepts]: Start accepts. Automaton has 10270 states and 20613 transitions. Word has length 95 [2024-10-29 15:22:44,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:44,865 INFO L471 AbstractCegarLoop]: Abstraction has 10270 states and 20613 transitions. [2024-10-29 15:22:44,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand 10270 states and 20613 transitions. [2024-10-29 15:22:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:44,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:44,868 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:44,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-29 15:22:44,869 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:44,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash 758513350, now seen corresponding path program 16 times [2024-10-29 15:22:44,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:44,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060163877] [2024-10-29 15:22:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:45,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:45,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060163877] [2024-10-29 15:22:45,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060163877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:45,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:45,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:45,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899650388] [2024-10-29 15:22:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:45,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:45,482 INFO L87 Difference]: Start difference. First operand 10270 states and 20613 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:46,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:46,957 INFO L93 Difference]: Finished difference Result 18672 states and 37589 transitions. [2024-10-29 15:22:46,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-29 15:22:46,958 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:47,000 INFO L225 Difference]: With dead ends: 18672 [2024-10-29 15:22:47,000 INFO L226 Difference]: Without dead ends: 18607 [2024-10-29 15:22:47,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=746, Unknown=0, NotChecked=0, Total=1056 [2024-10-29 15:22:47,007 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 1256 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:47,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 3299 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-29 15:22:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18607 states. [2024-10-29 15:22:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18607 to 10273. [2024-10-29 15:22:47,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10273 states, 10219 states have (on average 2.0177121049026323) internal successors, (20619), 10272 states have internal predecessors, (20619), 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) [2024-10-29 15:22:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10273 states to 10273 states and 20619 transitions. [2024-10-29 15:22:47,196 INFO L78 Accepts]: Start accepts. Automaton has 10273 states and 20619 transitions. Word has length 95 [2024-10-29 15:22:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:47,196 INFO L471 AbstractCegarLoop]: Abstraction has 10273 states and 20619 transitions. [2024-10-29 15:22:47,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 10273 states and 20619 transitions. [2024-10-29 15:22:47,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:47,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:47,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:47,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-29 15:22:47,200 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:47,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:47,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1110422098, now seen corresponding path program 17 times [2024-10-29 15:22:47,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:47,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440035950] [2024-10-29 15:22:47,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:47,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440035950] [2024-10-29 15:22:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440035950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183518408] [2024-10-29 15:22:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:47,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:47,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:47,771 INFO L87 Difference]: Start difference. First operand 10273 states and 20619 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-29 15:22:49,856 INFO L93 Difference]: Finished difference Result 18713 states and 37673 transitions. [2024-10-29 15:22:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-29 15:22:49,856 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Word has length 95 [2024-10-29 15:22:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-29 15:22:49,897 INFO L225 Difference]: With dead ends: 18713 [2024-10-29 15:22:49,898 INFO L226 Difference]: Without dead ends: 18648 [2024-10-29 15:22:49,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-10-29 15:22:49,907 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1267 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 3816 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-29 15:22:49,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 3816 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-29 15:22:49,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18648 states. [2024-10-29 15:22:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18648 to 10276. [2024-10-29 15:22:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10276 states, 10222 states have (on average 2.017804734885541) internal successors, (20626), 10275 states have internal predecessors, (20626), 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) [2024-10-29 15:22:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10276 states to 10276 states and 20626 transitions. [2024-10-29 15:22:50,121 INFO L78 Accepts]: Start accepts. Automaton has 10276 states and 20626 transitions. Word has length 95 [2024-10-29 15:22:50,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-29 15:22:50,122 INFO L471 AbstractCegarLoop]: Abstraction has 10276 states and 20626 transitions. [2024-10-29 15:22:50,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) [2024-10-29 15:22:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10276 states and 20626 transitions. [2024-10-29 15:22:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-29 15:22:50,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-29 15:22:50,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-29 15:22:50,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-29 15:22:50,126 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-29 15:22:50,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-29 15:22:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1294039342, now seen corresponding path program 18 times [2024-10-29 15:22:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-29 15:22:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760228376] [2024-10-29 15:22:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-29 15:22:50,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-29 15:22:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-29 15:22:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-29 15:22:50,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-29 15:22:50,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760228376] [2024-10-29 15:22:50,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760228376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-29 15:22:50,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-29 15:22:50,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-29 15:22:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005181911] [2024-10-29 15:22:50,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-29 15:22:50,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-29 15:22:50,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-29 15:22:50,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-29 15:22:50,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-29 15:22:50,682 INFO L87 Difference]: Start difference. First operand 10276 states and 20626 transitions. Second operand has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 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) Killed by 15