./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/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/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:13:16,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:13:16,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:13:16,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:13:16,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:13:16,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:13:16,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:13:16,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:13:16,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:13:16,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:13:16,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:13:16,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:13:16,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:13:16,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:13:16,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:13:16,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:13:16,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:13:16,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:13:16,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:13:16,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:13:16,186 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:13:16,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:13:16,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:13:16,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:13:16,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:13:16,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:13:16,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:13:16,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:13:16,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:13:16,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:13:16,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:13:16,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:13:16,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:13:16,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:13:16,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:13:16,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:13:16,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:13:16,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:13:16,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:13:16,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:13:16,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:13:16,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:13:16,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:13:16,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:13:16,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:13:16,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:13:16,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:13:16,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:13:16,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:13:16,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:13:16,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:13:16,234 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:13:16,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:13:16,235 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:13:16,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:13:16,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:13:16,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:13:16,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:13:16,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:13:16,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:13:16,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:13:16,236 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:13:16,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:13:16,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:13:16,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:13:16,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:13:16,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:13:16,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:13:16,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:13:16,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:13:16,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:13:16,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:13:16,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:13:16,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:13:16,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:13:16,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:13:16,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:13:16,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:13:16,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d [2022-04-18 16:13:16,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:13:16,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:13:16,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:13:16,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:13:16,474 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:13:16,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-04-18 16:13:16,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991251c7c/2106df87c0384f1a946e4e3656e7d62d/FLAGdeb844f4f [2022-04-18 16:13:16,991 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:13:16,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-04-18 16:13:17,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991251c7c/2106df87c0384f1a946e4e3656e7d62d/FLAGdeb844f4f [2022-04-18 16:13:17,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/991251c7c/2106df87c0384f1a946e4e3656e7d62d [2022-04-18 16:13:17,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:13:17,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:13:17,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:13:17,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:13:17,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:13:17,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:13:17" (1/1) ... [2022-04-18 16:13:17,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2b2a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:17, skipping insertion in model container [2022-04-18 16:13:17,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:13:17" (1/1) ... [2022-04-18 16:13:17,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:13:17,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:13:17,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-04-18 16:13:17,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:13:17,947 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:13:17,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-04-18 16:13:18,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:13:18,060 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:13:18,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18 WrapperNode [2022-04-18 16:13:18,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:13:18,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:13:18,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:13:18,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:13:18,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,161 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 516 [2022-04-18 16:13:18,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:13:18,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:13:18,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:13:18,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:13:18,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:13:18,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:13:18,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:13:18,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:13:18,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (1/1) ... [2022-04-18 16:13:18,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:13:18,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:13:18,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:13:18,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:13:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:13:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:13:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 16:13:18,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 16:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 16:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 16:13:18,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:13:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:13:18,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:13:18,330 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:13:18,581 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:13:18,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:13:19,602 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:15:19,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:15:19,259 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:15:19,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:15:19 BoogieIcfgContainer [2022-04-18 16:15:19,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:15:19,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:15:19,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:15:19,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:15:19,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:13:17" (1/3) ... [2022-04-18 16:15:19,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568aa849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:15:19, skipping insertion in model container [2022-04-18 16:15:19,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:13:18" (2/3) ... [2022-04-18 16:15:19,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568aa849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:15:19, skipping insertion in model container [2022-04-18 16:15:19,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:15:19" (3/3) ... [2022-04-18 16:15:19,270 INFO L111 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-04-18 16:15:19,275 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:15:19,275 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:15:19,275 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 282 error locations. [2022-04-18 16:15:19,275 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:15:29,075 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 16:15:29,115 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:15:29,121 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-04-18 16:15:29,121 INFO L341 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2022-04-18 16:15:29,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 422 transitions, 864 flow [2022-04-18 16:15:29,475 INFO L129 PetriNetUnfolder]: 2/418 cut-off events. [2022-04-18 16:15:29,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:15:29,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 418 events. 2/418 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2375 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 377. Up to 2 conditions per place. [2022-04-18 16:15:29,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 422 transitions, 864 flow [2022-04-18 16:15:29,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 418 transitions, 848 flow [2022-04-18 16:15:29,517 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2022-04-18 16:15:29,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:15:29,517 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:15:29,518 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:15:29,519 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err11ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2022-04-18 16:15:29,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:15:29,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1700156720, now seen corresponding path program 1 times [2022-04-18 16:15:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:15:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656830921] [2022-04-18 16:15:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:15:29,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:15:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:15:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:15:30,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:15:30,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656830921] [2022-04-18 16:15:30,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656830921] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:15:30,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:15:30,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 16:15:30,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808215136] [2022-04-18 16:15:30,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:15:30,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 16:15:30,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:15:30,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 16:15:30,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 16:15:30,506 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 422 [2022-04-18 16:15:30,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 418 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 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) [2022-04-18 16:15:30,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:15:30,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 422 [2022-04-18 16:15:30,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:15:52,972 INFO L129 PetriNetUnfolder]: 10870/34943 cut-off events. [2022-04-18 16:15:52,972 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-04-18 16:15:53,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49786 conditions, 34943 events. 10870/34943 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 463221 event pairs, 10870 based on Foata normal form. 1656/34654 useless extension candidates. Maximal degree in co-relation 49730. Up to 14526 conditions per place. [2022-04-18 16:15:53,265 INFO L132 encePairwiseOnDemand]: 140/422 looper letters, 25 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2022-04-18 16:15:53,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 135 transitions, 332 flow [2022-04-18 16:15:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 16:15:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 16:15:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 535 transitions. [2022-04-18 16:15:53,286 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6338862559241706 [2022-04-18 16:15:53,287 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 535 transitions. [2022-04-18 16:15:53,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 535 transitions. [2022-04-18 16:15:53,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:15:53,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 535 transitions. [2022-04-18 16:15:53,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 267.5) internal successors, (535), 2 states have internal predecessors, (535), 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) [2022-04-18 16:15:53,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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) [2022-04-18 16:15:53,305 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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) [2022-04-18 16:15:53,308 INFO L186 Difference]: Start difference. First operand has 429 places, 418 transitions, 848 flow. Second operand 2 states and 535 transitions. [2022-04-18 16:15:53,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 135 transitions, 332 flow [2022-04-18 16:15:53,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 135 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:15:53,317 INFO L242 Difference]: Finished difference. Result has 145 places, 135 transitions, 278 flow [2022-04-18 16:15:53,319 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=422, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=278, PETRI_PLACES=145, PETRI_TRANSITIONS=135} [2022-04-18 16:15:53,323 INFO L335 CegarLoopForPetriNet]: 429 programPoint places, -284 predicate places. [2022-04-18 16:15:53,323 INFO L478 AbstractCegarLoop]: Abstraction has has 145 places, 135 transitions, 278 flow [2022-04-18 16:15:53,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 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) [2022-04-18 16:15:53,324 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:15:53,325 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:15:53,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:15:53,325 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2022-04-18 16:15:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:15:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 257758708, now seen corresponding path program 1 times [2022-04-18 16:15:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:15:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937448901] [2022-04-18 16:15:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:15:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:15:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:15:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:15:53,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:15:53,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937448901] [2022-04-18 16:15:53,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937448901] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:15:53,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:15:53,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:15:53,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001235784] [2022-04-18 16:15:53,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:15:53,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:15:53,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:15:53,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:15:53,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:15:53,738 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 422 [2022-04-18 16:15:53,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 135 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2022-04-18 16:15:53,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:15:53,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 422 [2022-04-18 16:15:53,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:16:21,997 INFO L129 PetriNetUnfolder]: 16570/48196 cut-off events. [2022-04-18 16:16:21,998 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:16:22,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70486 conditions, 48196 events. 16570/48196 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 615019 event pairs, 5170 based on Foata normal form. 0/45518 useless extension candidates. Maximal degree in co-relation 70483. Up to 14900 conditions per place. [2022-04-18 16:16:22,327 INFO L132 encePairwiseOnDemand]: 420/422 looper letters, 44 selfloop transitions, 1 changer transitions 0/152 dead transitions. [2022-04-18 16:16:22,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 152 transitions, 402 flow [2022-04-18 16:16:22,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:16:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:16:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2022-04-18 16:16:22,333 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.29936808846761453 [2022-04-18 16:16:22,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2022-04-18 16:16:22,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2022-04-18 16:16:22,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:16:22,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2022-04-18 16:16:22,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2022-04-18 16:16:22,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 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) [2022-04-18 16:16:22,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 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) [2022-04-18 16:16:22,341 INFO L186 Difference]: Start difference. First operand has 145 places, 135 transitions, 278 flow. Second operand 3 states and 379 transitions. [2022-04-18 16:16:22,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 152 transitions, 402 flow [2022-04-18 16:16:22,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 152 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:16:22,348 INFO L242 Difference]: Finished difference. Result has 146 places, 134 transitions, 278 flow [2022-04-18 16:16:22,349 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=422, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=146, PETRI_TRANSITIONS=134} [2022-04-18 16:16:22,349 INFO L335 CegarLoopForPetriNet]: 429 programPoint places, -283 predicate places. [2022-04-18 16:16:22,349 INFO L478 AbstractCegarLoop]: Abstraction has has 146 places, 134 transitions, 278 flow [2022-04-18 16:16:22,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2022-04-18 16:16:22,350 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:16:22,350 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:16:22,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:16:22,351 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2022-04-18 16:16:22,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:16:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1767688941, now seen corresponding path program 1 times [2022-04-18 16:16:22,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:16:22,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145880037] [2022-04-18 16:16:22,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:16:22,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:16:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:16:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:16:22,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:16:22,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145880037] [2022-04-18 16:16:22,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145880037] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:16:22,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:16:22,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:16:22,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286897931] [2022-04-18 16:16:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:16:22,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:16:22,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:16:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:16:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:16:22,761 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 422 [2022-04-18 16:16:22,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 134 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-04-18 16:16:22,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:16:22,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 422 [2022-04-18 16:16:22,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand