./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c --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/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:17:30,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:17:30,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:17:30,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:17:30,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:17:30,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:17:30,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:17:30,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:17:30,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:17:30,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:17:30,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:17:30,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:17:30,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:17:30,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:17:30,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:17:30,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:17:30,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:17:30,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:17:30,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:17:30,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:17:30,557 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:17:30,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:17:30,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:17:30,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:17:30,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:17:30,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:17:30,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:17:30,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:17:30,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:17:30,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:17:30,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:17:30,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:17:30,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:17:30,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:17:30,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:17:30,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:17:30,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:17:30,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:17:30,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:17:30,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:17:30,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:17:30,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:17:30,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:17:30,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:17:30,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:17:30,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:17:30,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:17:30,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:17:30,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:17:30,604 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:17:30,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:17:30,604 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:17:30,605 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:17:30,606 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:17:30,606 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:17:30,607 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:17:30,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:17:30,608 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:17:30,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:17:30,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:17:30,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:17:30,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:17:30,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:17:30,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:17:30,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:17:30,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:17:30,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:17:30,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:17:30,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:17:30,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:17:30,611 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-04-18 20:17:30,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:17:30,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:17:30,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:17:30,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:17:30,816 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:17:30,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2022-04-18 20:17:30,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ce571f09/caddef7214b546f8ad7e055221db3e06/FLAG319db7389 [2022-04-18 20:17:31,235 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:17:31,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2022-04-18 20:17:31,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ce571f09/caddef7214b546f8ad7e055221db3e06/FLAG319db7389 [2022-04-18 20:17:31,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6ce571f09/caddef7214b546f8ad7e055221db3e06 [2022-04-18 20:17:31,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:17:31,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:17:31,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:17:31,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:17:31,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:17:31,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:17:31" (1/1) ... [2022-04-18 20:17:31,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66223f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:31, skipping insertion in model container [2022-04-18 20:17:31,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:17:31" (1/1) ... [2022-04-18 20:17:31,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:17:31,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:17:31,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3945,3958] [2022-04-18 20:17:31,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:17:31,909 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:17:31,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3945,3958] [2022-04-18 20:17:31,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:17:31,999 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:17:32,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32 WrapperNode [2022-04-18 20:17:32,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:17:32,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:17:32,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:17:32,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:17:32,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,069 INFO L137 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 807 [2022-04-18 20:17:32,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:17:32,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:17:32,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:17:32,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:17:32,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:17:32,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:17:32,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:17:32,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:17:32,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (1/1) ... [2022-04-18 20:17:32,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:17:32,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:17:32,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:17:32,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:17:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:17:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:17:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:17:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:17:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:17:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:17:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:17:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:17:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:17:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:17:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:17:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:17:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:17:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:17:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:17:32,342 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:17:32,448 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:17:32,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:17:33,225 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:17:33,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:17:33,238 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 20:17:33,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:17:33 BoogieIcfgContainer [2022-04-18 20:17:33,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:17:33,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:17:33,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:17:33,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:17:33,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:17:31" (1/3) ... [2022-04-18 20:17:33,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12104f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:17:33, skipping insertion in model container [2022-04-18 20:17:33,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:17:32" (2/3) ... [2022-04-18 20:17:33,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12104f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:17:33, skipping insertion in model container [2022-04-18 20:17:33,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:17:33" (3/3) ... [2022-04-18 20:17:33,259 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-04-18 20:17:33,262 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:17:33,263 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:17:33,263 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-04-18 20:17:33,263 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:17:33,382 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 20:17:33,417 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:17:33,428 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=FINITE_AUTOMATA, 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 20:17:33,428 INFO L341 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-04-18 20:17:33,470 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:17:33,479 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1023 places, 1064 transitions, 2152 flow [2022-04-18 20:17:33,484 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 1023 places, 1064 transitions, 2152 flow [2022-04-18 20:17:33,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1064 transitions, 2152 flow [2022-04-18 20:17:33,814 INFO L129 PetriNetUnfolder]: 51/1061 cut-off events. [2022-04-18 20:17:33,815 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 20:17:33,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1061 events. 51/1061 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2294 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 840. Up to 2 conditions per place. [2022-04-18 20:17:33,897 INFO L116 LiptonReduction]: Number of co-enabled transitions 170502 [2022-04-18 20:18:11,781 INFO L131 LiptonReduction]: Checked pairs total: 1179086 [2022-04-18 20:18:11,781 INFO L133 LiptonReduction]: Total number of compositions: 1731 [2022-04-18 20:18:11,801 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 274 transitions, 572 flow