./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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 ../sv-benchmarks/c/pthread-atomic/dekker.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b09e522566a82367f1e090dbdcfe12204e8a578a ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ../sv-benchmarks/c/pthread-atomic/dekker.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b09e522566a82367f1e090dbdcfe12204e8a578a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:20:34,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:20:34,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:20:34,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:20:34,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:20:34,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:20:34,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:20:34,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:20:34,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:20:34,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:20:34,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:20:34,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:20:34,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:20:34,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:20:34,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:20:34,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:20:34,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:20:34,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:20:34,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:20:34,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:20:34,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:20:34,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:20:34,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:20:34,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:20:34,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:20:34,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:20:34,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:20:34,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:20:34,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:20:34,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:20:34,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:20:34,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:20:34,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:20:34,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:20:34,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:20:34,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:20:34,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:20:34,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:20:34,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:20:34,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:20:34,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:20:34,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 15:20:34,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:20:34,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:20:34,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:20:34,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:20:34,332 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:20:34,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:20:34,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:20:34,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 15:20:34,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:20:34,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:20:34,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:20:34,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:20:34,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:20:34,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:20:34,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:20:34,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09e522566a82367f1e090dbdcfe12204e8a578a [2021-07-05 15:20:34,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:20:34,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:20:34,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:20:34,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:20:34,620 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:20:34,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker.i [2021-07-05 15:20:34,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7881c38bd/5b5dd410fc7e4765b6b3f924b3781e1f/FLAG4c66c0f35 [2021-07-05 15:20:35,046 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:20:35,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2021-07-05 15:20:35,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7881c38bd/5b5dd410fc7e4765b6b3f924b3781e1f/FLAG4c66c0f35 [2021-07-05 15:20:35,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7881c38bd/5b5dd410fc7e4765b6b3f924b3781e1f [2021-07-05 15:20:35,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:20:35,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:20:35,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:20:35,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:20:35,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:20:35,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efcc062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35, skipping insertion in model container [2021-07-05 15:20:35,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:20:35,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:20:35,577 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 15:20:35,706 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-07-05 15:20:35,714 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-07-05 15:20:35,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:20:35,726 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:20:35,749 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 15:20:35,766 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-07-05 15:20:35,773 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-07-05 15:20:35,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:20:35,834 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:20:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35 WrapperNode [2021-07-05 15:20:35,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:20:35,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:20:35,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:20:35,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:20:35,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:20:35,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:20:35,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:20:35,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:20:35,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:20:35,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:20:35,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:20:35,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:20:35,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (1/1) ... [2021-07-05 15:20:35,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:20:35,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:20:35,930 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) [2021-07-05 15:20:35,945 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 [2021-07-05 15:20:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 15:20:35,958 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-05 15:20:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 15:20:35,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 15:20:35,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:20:35,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:20:35,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:20:35,961 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:20:36,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:20:36,169 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-05 15:20:36,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:20:36 BoogieIcfgContainer [2021-07-05 15:20:36,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:20:36,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:20:36,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:20:36,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:20:36,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:20:35" (1/3) ... [2021-07-05 15:20:36,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728e4c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:20:36, skipping insertion in model container [2021-07-05 15:20:36,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:35" (2/3) ... [2021-07-05 15:20:36,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728e4c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:20:36, skipping insertion in model container [2021-07-05 15:20:36,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:20:36" (3/3) ... [2021-07-05 15:20:36,175 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-07-05 15:20:36,179 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:20:36,179 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:20:36,179 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:20:36,180 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:20:36,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,213 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:36,232 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-05 15:20:36,265 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:20:36,271 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:20:36,271 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:20:36,300 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:20:36,307 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 102 transitions, 226 flow [2021-07-05 15:20:36,310 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 102 transitions, 226 flow [2021-07-05 15:20:36,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 102 transitions, 226 flow [2021-07-05 15:20:36,351 INFO L129 PetriNetUnfolder]: 14/102 cut-off events. [2021-07-05 15:20:36,351 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 15:20:36,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 102 events. 14/102 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2021-07-05 15:20:36,358 INFO L116 LiptonReduction]: Number of co-enabled transitions 2288 [2021-07-05 15:20:38,236 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2021-07-05 15:20:38,493 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2021-07-05 15:20:38,581 INFO L131 LiptonReduction]: Checked pairs total: 7372 [2021-07-05 15:20:38,581 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-07-05 15:20:38,587 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 44 transitions, 110 flow [2021-07-05 15:20:38,609 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 389 states, 385 states have (on average 2.7506493506493506) internal successors, (1059), 388 states have internal predecessors, (1059), 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) [2021-07-05 15:20:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 385 states have (on average 2.7506493506493506) internal successors, (1059), 388 states have internal predecessors, (1059), 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) [2021-07-05 15:20:38,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:20:38,636 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:20:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:20:38,640 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:20:38,641 INFO L168 Benchmark]: Toolchain (without parser) took 3232.26 ms. Allocated memory was 54.5 MB in the beginning and 125.8 MB in the end (delta: 71.3 MB). Free memory was 30.3 MB in the beginning and 53.6 MB in the end (delta: -23.3 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,642 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.1 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:20:38,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.90 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.1 MB in the beginning and 48.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 46.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,643 INFO L168 Benchmark]: Boogie Preprocessor took 51.55 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,643 INFO L168 Benchmark]: RCFGBuilder took 258.82 ms. Allocated memory is still 71.3 MB. Free memory was 45.1 MB in the beginning and 39.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,644 INFO L168 Benchmark]: TraceAbstraction took 2469.14 ms. Allocated memory was 71.3 MB in the beginning and 125.8 MB in the end (delta: 54.5 MB). Free memory was 38.9 MB in the beginning and 53.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:38,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.1 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.90 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.1 MB in the beginning and 48.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 46.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.55 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 258.82 ms. Allocated memory is still 71.3 MB. Free memory was 45.1 MB in the beginning and 39.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2469.14 ms. Allocated memory was 71.3 MB in the beginning and 125.8 MB in the end (delta: 54.5 MB). Free memory was 38.9 MB in the beginning and 53.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2271.7ms, 94 PlacesBefore, 42 PlacesAfterwards, 102 TransitionsBefore, 44 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 76 TotalNumberOfCompositions, 7372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4021, positive: 3801, positive conditional: 0, positive unconditional: 3801, negative: 220, negative conditional: 0, negative unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1533, positive: 1489, positive conditional: 0, positive unconditional: 1489, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1533, positive: 1458, positive conditional: 0, positive unconditional: 1458, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 75, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4021, positive: 2312, positive conditional: 0, positive unconditional: 2312, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 1533, unknown conditional: 0, unknown unconditional: 1533] , Statistics on independence cache: Total cache size (in pairs): 269, Positive cache size: 243, Positive conditional cache size: 0, Positive unconditional cache size: 243, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:20:38,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:20:40,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:20:40,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:20:40,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:20:40,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:20:40,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:20:40,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:20:40,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:20:40,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:20:40,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:20:40,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:20:40,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:20:40,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:20:40,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:20:40,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:20:40,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:20:40,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:20:40,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:20:40,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:20:40,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:20:40,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:20:40,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:20:40,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:20:40,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:20:40,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:20:40,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:20:40,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:20:40,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:20:40,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:20:40,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:20:40,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:20:40,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:20:40,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:20:40,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:20:40,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:20:40,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:20:40,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:20:40,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:20:40,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:20:40,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:20:40,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:20:40,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 15:20:40,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:20:40,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:20:40,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:20:40,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:20:40,453 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:20:40,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:20:40,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:20:40,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:20:40,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:20:40,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:20:40,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:20:40,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:20:40,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:20:40,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:20:40,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:20:40,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:20:40,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:20:40,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:20:40,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 15:20:40,457 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09e522566a82367f1e090dbdcfe12204e8a578a [2021-07-05 15:20:40,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:20:40,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:20:40,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:20:40,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:20:40,723 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:20:40,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker.i [2021-07-05 15:20:40,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ac5e791/cfec26256188473ea5d6764af0476eb1/FLAGc6c1f08b4 [2021-07-05 15:20:41,176 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:20:41,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2021-07-05 15:20:41,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ac5e791/cfec26256188473ea5d6764af0476eb1/FLAGc6c1f08b4 [2021-07-05 15:20:41,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ac5e791/cfec26256188473ea5d6764af0476eb1 [2021-07-05 15:20:41,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:20:41,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:20:41,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:20:41,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:20:41,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:20:41,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34aaae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41, skipping insertion in model container [2021-07-05 15:20:41,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:20:41,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:20:41,409 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 15:20:41,529 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-07-05 15:20:41,536 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-07-05 15:20:41,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:20:41,549 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:20:41,565 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 15:20:41,580 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-07-05 15:20:41,588 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-07-05 15:20:41,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:20:41,648 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:20:41,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41 WrapperNode [2021-07-05 15:20:41,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:20:41,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:20:41,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:20:41,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:20:41,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:20:41,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:20:41,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:20:41,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:20:41,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:20:41,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:20:41,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:20:41,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:20:41,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (1/1) ... [2021-07-05 15:20:41,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:20:41,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:20:41,711 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) [2021-07-05 15:20:41,728 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 [2021-07-05 15:20:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-07-05 15:20:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-05 15:20:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-05 15:20:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 15:20:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 15:20:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:20:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:20:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:20:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 15:20:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 15:20:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:20:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:20:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:20:41,741 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:20:42,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:20:42,043 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-05 15:20:42,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:20:42 BoogieIcfgContainer [2021-07-05 15:20:42,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:20:42,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:20:42,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:20:42,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:20:42,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:20:41" (1/3) ... [2021-07-05 15:20:42,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468e9722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:20:42, skipping insertion in model container [2021-07-05 15:20:42,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:20:41" (2/3) ... [2021-07-05 15:20:42,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468e9722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:20:42, skipping insertion in model container [2021-07-05 15:20:42,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:20:42" (3/3) ... [2021-07-05 15:20:42,051 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-07-05 15:20:42,057 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:20:42,057 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:20:42,057 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:20:42,057 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:20:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,089 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,089 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,089 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,096 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,096 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,096 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,096 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,097 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,097 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,097 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,097 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,098 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,098 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,100 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,119 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,119 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,120 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,120 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,121 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,121 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:20:42,126 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-05 15:20:42,158 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:20:42,164 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:20:42,164 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:20:42,177 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:20:42,183 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 103 transitions, 228 flow [2021-07-05 15:20:42,189 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 103 transitions, 228 flow [2021-07-05 15:20:42,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 103 transitions, 228 flow [2021-07-05 15:20:42,218 INFO L129 PetriNetUnfolder]: 14/103 cut-off events. [2021-07-05 15:20:42,221 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 15:20:42,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 103 events. 14/103 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2021-07-05 15:20:42,226 INFO L116 LiptonReduction]: Number of co-enabled transitions 2288 [2021-07-05 15:20:44,378 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-05 15:20:44,485 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-07-05 15:20:44,636 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-07-05 15:20:44,760 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-07-05 15:20:45,212 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2021-07-05 15:20:45,404 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-05 15:20:45,820 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2021-07-05 15:20:46,004 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-07-05 15:20:46,269 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-07-05 15:20:46,493 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-07-05 15:20:46,724 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-05 15:20:46,940 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-05 15:20:46,968 INFO L131 LiptonReduction]: Checked pairs total: 8209 [2021-07-05 15:20:46,968 INFO L133 LiptonReduction]: Total number of compositions: 80 [2021-07-05 15:20:46,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 44 transitions, 110 flow [2021-07-05 15:20:47,009 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 389 states, 385 states have (on average 2.7506493506493506) internal successors, (1059), 388 states have internal predecessors, (1059), 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) [2021-07-05 15:20:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 385 states have (on average 2.7506493506493506) internal successors, (1059), 388 states have internal predecessors, (1059), 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) [2021-07-05 15:20:47,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:20:47,032 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:20:47,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:20:47,035 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:20:47,038 INFO L168 Benchmark]: Toolchain (without parser) took 5833.51 ms. Allocated memory was 50.3 MB in the beginning and 136.3 MB in the end (delta: 86.0 MB). Free memory was 26.3 MB in the beginning and 76.0 MB in the end (delta: -49.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,039 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 33.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:20:47,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.36 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 40.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.07 ms. Allocated memory is still 62.9 MB. Free memory was 39.9 MB in the beginning and 38.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,044 INFO L168 Benchmark]: Boogie Preprocessor took 18.70 ms. Allocated memory is still 62.9 MB. Free memory was 38.0 MB in the beginning and 36.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,045 INFO L168 Benchmark]: RCFGBuilder took 351.01 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 36.2 MB in the beginning and 59.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,046 INFO L168 Benchmark]: TraceAbstraction took 4991.22 ms. Allocated memory was 77.6 MB in the beginning and 136.3 MB in the end (delta: 58.7 MB). Free memory was 59.1 MB in the beginning and 76.0 MB in the end (delta: -16.9 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-07-05 15:20:47,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 33.0 MB in the beginning and 33.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.36 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 40.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.07 ms. Allocated memory is still 62.9 MB. Free memory was 39.9 MB in the beginning and 38.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.70 ms. Allocated memory is still 62.9 MB. Free memory was 38.0 MB in the beginning and 36.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 351.01 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 36.2 MB in the beginning and 59.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4991.22 ms. Allocated memory was 77.6 MB in the beginning and 136.3 MB in the end (delta: 58.7 MB). Free memory was 59.1 MB in the beginning and 76.0 MB in the end (delta: -16.9 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4779.1ms, 95 PlacesBefore, 42 PlacesAfterwards, 103 TransitionsBefore, 44 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 7 FixpointIterations, 32 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 80 TotalNumberOfCompositions, 8209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4467, positive: 4216, positive conditional: 0, positive unconditional: 4216, negative: 251, negative conditional: 0, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1548, positive: 1503, positive conditional: 0, positive unconditional: 1503, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1548, positive: 1474, positive conditional: 0, positive unconditional: 1474, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 128, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4467, positive: 2713, positive conditional: 0, positive unconditional: 2713, negative: 206, negative conditional: 0, negative unconditional: 206, unknown: 1548, unknown conditional: 0, unknown unconditional: 1548] , Statistics on independence cache: Total cache size (in pairs): 296, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:20:47,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...