./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-divine/condvar.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-divine/condvar.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 d16741ac57914c34248ac4b60573c9c4b90df3cc ..................................................................................................................................................................................................................................................................................... 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-divine/condvar.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 d16741ac57914c34248ac4b60573c9c4b90df3cc ........................................................................................................................................................................................................................................................................................ 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 16:16:35,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 16:16:35,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 16:16:35,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 16:16:35,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 16:16:35,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 16:16:35,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 16:16:35,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 16:16:35,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 16:16:35,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 16:16:35,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 16:16:35,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 16:16:35,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 16:16:35,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 16:16:35,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 16:16:35,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 16:16:35,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 16:16:35,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 16:16:35,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 16:16:35,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 16:16:35,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 16:16:35,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 16:16:35,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 16:16:35,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 16:16:35,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 16:16:35,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 16:16:35,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 16:16:35,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 16:16:35,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 16:16:35,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 16:16:35,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 16:16:35,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 16:16:35,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 16:16:35,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 16:16:35,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 16:16:35,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 16:16:35,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 16:16:35,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 16:16:35,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 16:16:35,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 16:16:35,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 16:16:35,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 16:16:35,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 16:16:35,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 16:16:35,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 16:16:35,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 16:16:35,744 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 16:16:35,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 16:16:35,745 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 16:16:35,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 16:16:35,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 16:16:35,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 16:16:35,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 16:16:35,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 16:16:35,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 16:16:35,747 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 16:16:35,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 16:16:35,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 16:16:35,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 16:16:35,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 16:16:35,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 16:16:35,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 16:16:35,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:16:35,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 16:16:35,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 16:16:35,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 16:16:35,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 16:16:35,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 16:16:35,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 16:16:35,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 16:16:35,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d16741ac57914c34248ac4b60573c9c4b90df3cc [2021-07-05 16:16:36,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 16:16:36,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 16:16:36,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 16:16:36,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 16:16:36,028 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 16:16:36,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar.i [2021-07-05 16:16:36,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b796a68/5cabd6030cf642ebaf8a88f62046cf7f/FLAG964ce91e6 [2021-07-05 16:16:36,478 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 16:16:36,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar.i [2021-07-05 16:16:36,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b796a68/5cabd6030cf642ebaf8a88f62046cf7f/FLAG964ce91e6 [2021-07-05 16:16:36,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b796a68/5cabd6030cf642ebaf8a88f62046cf7f [2021-07-05 16:16:36,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 16:16:36,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 16:16:36,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 16:16:36,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 16:16:36,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 16:16:36,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:16:36" (1/1) ... [2021-07-05 16:16:36,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e574cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:36, skipping insertion in model container [2021-07-05 16:16:36,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:16:36" (1/1) ... [2021-07-05 16:16:36,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 16:16:36,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 16:16:36,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:16:37,141 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-divine/condvar.i[30458,30471] [2021-07-05 16:16:37,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:16:37,164 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 16:16:37,178 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:16:37,197 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-divine/condvar.i[30458,30471] [2021-07-05 16:16:37,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:16:37,257 INFO L208 MainTranslator]: Completed translation [2021-07-05 16:16:37,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37 WrapperNode [2021-07-05 16:16:37,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 16:16:37,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 16:16:37,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 16:16:37,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 16:16:37,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 16:16:37,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 16:16:37,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 16:16:37,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 16:16:37,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 16:16:37,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 16:16:37,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 16:16:37,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 16:16:37,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (1/1) ... [2021-07-05 16:16:37,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:16:37,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 16:16:37,414 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 16:16:37,454 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 16:16:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 16:16:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 16:16:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-05 16:16:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 16:16:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 16:16:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 16:16:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-07-05 16:16:37,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-07-05 16:16:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 16:16:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 16:16:37,484 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 16:16:37,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 16:16:37,777 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-05 16:16:37,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:16:37 BoogieIcfgContainer [2021-07-05 16:16:37,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 16:16:37,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 16:16:37,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 16:16:37,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 16:16:37,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 04:16:36" (1/3) ... [2021-07-05 16:16:37,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd1a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:16:37, skipping insertion in model container [2021-07-05 16:16:37,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:37" (2/3) ... [2021-07-05 16:16:37,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdd1a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:16:37, skipping insertion in model container [2021-07-05 16:16:37,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:16:37" (3/3) ... [2021-07-05 16:16:37,783 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-07-05 16:16:37,787 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 16:16:37,787 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 16:16:37,787 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 16:16:37,787 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,820 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,821 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,822 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,823 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,823 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,825 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,825 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,825 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,825 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:37,836 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-05 16:16:37,865 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATION ======== [2021-07-05 16:16:37,869 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 16:16:37,869 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:16:37,876 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:16:37,883 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 72 transitions, 152 flow [2021-07-05 16:16:37,884 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 72 transitions, 152 flow [2021-07-05 16:16:37,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 72 transitions, 152 flow [2021-07-05 16:16:37,905 INFO L129 PetriNetUnfolder]: 5/71 cut-off events. [2021-07-05 16:16:37,907 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-07-05 16:16:37,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 5/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-07-05 16:16:37,912 INFO L116 LiptonReduction]: Number of co-enabled transitions 384 [2021-07-05 16:16:40,390 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2021-07-05 16:16:40,517 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:16:40,793 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2021-07-05 16:16:40,922 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:16:41,285 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2021-07-05 16:16:41,481 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-05 16:16:41,840 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2021-07-05 16:16:42,016 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-05 16:16:42,017 INFO L131 LiptonReduction]: Checked pairs total: 387 [2021-07-05 16:16:42,018 INFO L133 LiptonReduction]: Total number of compositions: 66 [2021-07-05 16:16:42,022 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2021-07-05 16:16:42,026 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 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 16:16:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 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 16:16:42,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:16:42,032 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-07-05 16:16:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:16:42,035 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 16:16:42,037 INFO L168 Benchmark]: Toolchain (without parser) took 5181.54 ms. Allocated memory was 56.6 MB in the beginning and 130.0 MB in the end (delta: 73.4 MB). Free memory was 32.5 MB in the beginning and 103.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:42,037 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:16:42,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.77 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.3 MB in the beginning and 55.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:42,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.12 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 53.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:42,038 INFO L168 Benchmark]: Boogie Preprocessor took 51.31 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 51.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:16:42,039 INFO L168 Benchmark]: RCFGBuilder took 409.13 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 29.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:42,039 INFO L168 Benchmark]: TraceAbstraction took 4256.70 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 28.7 MB in the beginning and 103.8 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:16:42,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.77 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.3 MB in the beginning and 55.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.12 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 53.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.31 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 51.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 409.13 ms. Allocated memory is still 73.4 MB. Free memory was 51.8 MB in the beginning and 29.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4256.70 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 28.7 MB in the beginning and 103.8 MB in the end (delta: -75.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4133.2ms, 71 PlacesBefore, 14 PlacesAfterwards, 72 TransitionsBefore, 12 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 66 TotalNumberOfCompositions, 387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 349, positive: 330, positive conditional: 0, positive unconditional: 330, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 273, positive: 262, positive conditional: 0, positive unconditional: 262, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 273, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 349, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 273, unknown conditional: 0, unknown unconditional: 273] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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 16:16:42,079 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 16:16:43,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 16:16:43,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 16:16:43,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 16:16:43,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 16:16:43,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 16:16:43,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 16:16:43,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 16:16:43,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 16:16:43,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 16:16:43,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 16:16:43,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 16:16:43,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 16:16:43,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 16:16:43,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 16:16:43,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 16:16:43,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 16:16:43,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 16:16:43,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 16:16:43,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 16:16:43,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 16:16:43,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 16:16:43,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 16:16:43,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 16:16:43,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 16:16:43,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 16:16:43,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 16:16:43,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 16:16:43,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 16:16:43,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 16:16:43,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 16:16:43,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 16:16:43,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 16:16:43,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 16:16:43,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 16:16:43,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 16:16:43,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 16:16:43,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 16:16:43,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 16:16:43,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 16:16:43,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 16:16:43,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 16:16:43,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 16:16:43,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 16:16:43,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 16:16:43,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 16:16:43,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 16:16:43,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 16:16:43,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 16:16:43,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 16:16:43,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 16:16:43,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:16:43,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 16:16:43,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 16:16:43,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 16:16:43,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d16741ac57914c34248ac4b60573c9c4b90df3cc [2021-07-05 16:16:43,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 16:16:43,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 16:16:43,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 16:16:43,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 16:16:43,975 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 16:16:43,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar.i [2021-07-05 16:16:44,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9782429c/9a48bc7709e446fdb3f028ecee80767d/FLAG25491087e [2021-07-05 16:16:44,467 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 16:16:44,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar.i [2021-07-05 16:16:44,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9782429c/9a48bc7709e446fdb3f028ecee80767d/FLAG25491087e [2021-07-05 16:16:44,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9782429c/9a48bc7709e446fdb3f028ecee80767d [2021-07-05 16:16:44,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 16:16:44,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 16:16:44,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 16:16:44,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 16:16:44,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 16:16:44,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a7e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44, skipping insertion in model container [2021-07-05 16:16:44,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 16:16:44,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 16:16:44,642 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:16:44,779 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-divine/condvar.i[30458,30471] [2021-07-05 16:16:44,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:16:44,804 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 16:16:44,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:16:44,851 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-divine/condvar.i[30458,30471] [2021-07-05 16:16:44,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:16:44,924 INFO L208 MainTranslator]: Completed translation [2021-07-05 16:16:44,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44 WrapperNode [2021-07-05 16:16:44,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 16:16:44,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 16:16:44,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 16:16:44,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 16:16:44,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 16:16:44,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 16:16:44,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 16:16:44,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 16:16:44,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 16:16:44,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 16:16:44,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 16:16:44,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 16:16:44,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (1/1) ... [2021-07-05 16:16:44,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:16:44,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 16:16:45,021 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 16:16:45,051 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 16:16:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-07-05 16:16:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-05 16:16:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 16:16:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 16:16:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 16:16:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 16:16:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-07-05 16:16:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-07-05 16:16:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-07-05 16:16:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 16:16:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 16:16:45,070 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 16:16:45,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 16:16:45,441 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-05 16:16:45,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:16:45 BoogieIcfgContainer [2021-07-05 16:16:45,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 16:16:45,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 16:16:45,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 16:16:45,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 16:16:45,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 04:16:44" (1/3) ... [2021-07-05 16:16:45,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65087391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:16:45, skipping insertion in model container [2021-07-05 16:16:45,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:16:44" (2/3) ... [2021-07-05 16:16:45,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65087391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:16:45, skipping insertion in model container [2021-07-05 16:16:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:16:45" (3/3) ... [2021-07-05 16:16:45,449 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-07-05 16:16:45,453 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 16:16:45,454 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 16:16:45,454 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 16:16:45,454 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 16:16:45,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,477 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,477 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,481 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,486 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,487 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,487 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:16:45,492 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-05 16:16:45,528 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATION ======== [2021-07-05 16:16:45,537 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 16:16:45,537 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:16:45,547 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:16:45,554 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 73 transitions, 154 flow [2021-07-05 16:16:45,557 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 73 transitions, 154 flow [2021-07-05 16:16:45,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 154 flow [2021-07-05 16:16:45,585 INFO L129 PetriNetUnfolder]: 5/72 cut-off events. [2021-07-05 16:16:45,586 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-07-05 16:16:45,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 5/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-07-05 16:16:45,592 INFO L116 LiptonReduction]: Number of co-enabled transitions 384 [2021-07-05 16:16:49,341 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-07-05 16:16:49,652 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-05 16:16:49,989 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-07-05 16:16:50,216 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-07-05 16:16:50,815 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-07-05 16:16:51,473 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-07-05 16:16:52,125 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 16:16:52,862 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-05 16:16:52,864 INFO L131 LiptonReduction]: Checked pairs total: 375 [2021-07-05 16:16:52,864 INFO L133 LiptonReduction]: Total number of compositions: 67 [2021-07-05 16:16:52,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2021-07-05 16:16:52,886 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 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 16:16:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 2.0) internal successors, (28), 15 states have internal predecessors, (28), 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 16:16:52,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:16:52,895 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-07-05 16:16:52,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:16:52,900 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 16:16:52,903 INFO L168 Benchmark]: Toolchain (without parser) took 8411.02 ms. Allocated memory was 58.7 MB in the beginning and 113.2 MB in the end (delta: 54.5 MB). Free memory was 35.2 MB in the beginning and 75.3 MB in the end (delta: -40.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,904 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:16:52,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.77 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 56.0 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.06 ms. Allocated memory is still 77.6 MB. Free memory was 56.0 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,906 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 77.6 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,906 INFO L168 Benchmark]: RCFGBuilder took 459.42 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 51.9 MB in the end (delta: 250.6 kB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,907 INFO L168 Benchmark]: TraceAbstraction took 7458.34 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 51.4 MB in the beginning and 75.3 MB in the end (delta: -23.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:16:52,909 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 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 425.77 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 56.0 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.06 ms. Allocated memory is still 77.6 MB. Free memory was 56.0 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 77.6 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 459.42 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 51.9 MB in the end (delta: 250.6 kB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7458.34 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 51.4 MB in the beginning and 75.3 MB in the end (delta: -23.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7307.3ms, 72 PlacesBefore, 14 PlacesAfterwards, 73 TransitionsBefore, 12 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 329, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 277, positive: 266, positive conditional: 0, positive unconditional: 266, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 277, positive: 264, positive conditional: 0, positive unconditional: 264, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 329, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 277, unknown conditional: 0, unknown unconditional: 277] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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 16:16:52,947 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...