./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-lit/fkp2013-2.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-lit/fkp2013-2.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 f6129a07d56a559cf710c4b8adbd271c62ceccda ........................................................................................................................................................................................................................................................................................................ 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-lit/fkp2013-2.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 f6129a07d56a559cf710c4b8adbd271c62ceccda ............................................................................................................................................................................................................................................................................................................ 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 16:02:49,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 16:02:49,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 16:02:49,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 16:02:49,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 16:02:49,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 16:02:49,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 16:02:49,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 16:02:49,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 16:02:49,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 16:02:49,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 16:02:49,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 16:02:49,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 16:02:49,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 16:02:49,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 16:02:49,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 16:02:49,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 16:02:49,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 16:02:49,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 16:02:49,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 16:02:49,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 16:02:49,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 16:02:49,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 16:02:49,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 16:02:49,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 16:02:49,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 16:02:49,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 16:02:49,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 16:02:49,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 16:02:49,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 16:02:49,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 16:02:49,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 16:02:49,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 16:02:49,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 16:02:49,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 16:02:49,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 16:02:49,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 16:02:49,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 16:02:49,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 16:02:49,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 16:02:49,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 16:02:49,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 16:02:49,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 16:02:49,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 16:02:49,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 16:02:49,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 16:02:49,869 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 16:02:49,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 16:02:49,870 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 16:02:49,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 16:02:49,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 16:02:49,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 16:02:49,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 16:02:49,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 16:02:49,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 16:02:49,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 16:02:49,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 16:02:49,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:02:49,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 16:02:49,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 16:02:49,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6129a07d56a559cf710c4b8adbd271c62ceccda [2021-07-05 16:02:50,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 16:02:50,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 16:02:50,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 16:02:50,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 16:02:50,118 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 16:02:50,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-07-05 16:02:50,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d2d7d43/5ba21f5f93ce40af9dc713e977ab0ac2/FLAG802b5b546 [2021-07-05 16:02:50,562 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 16:02:50,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-07-05 16:02:50,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d2d7d43/5ba21f5f93ce40af9dc713e977ab0ac2/FLAG802b5b546 [2021-07-05 16:02:50,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d2d7d43/5ba21f5f93ce40af9dc713e977ab0ac2 [2021-07-05 16:02:50,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 16:02:50,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 16:02:50,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 16:02:50,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 16:02:50,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 16:02:50,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:02:50" (1/1) ... [2021-07-05 16:02:50,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511212f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:50, skipping insertion in model container [2021-07-05 16:02:50,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:02:50" (1/1) ... [2021-07-05 16:02:50,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 16:02:51,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 16:02:51,227 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-lit/fkp2013-2.i[30003,30016] [2021-07-05 16:02:51,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:02:51,244 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 16:02:51,274 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-lit/fkp2013-2.i[30003,30016] [2021-07-05 16:02:51,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:02:51,335 INFO L208 MainTranslator]: Completed translation [2021-07-05 16:02:51,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51 WrapperNode [2021-07-05 16:02:51,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 16:02:51,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 16:02:51,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 16:02:51,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 16:02:51,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 16:02:51,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 16:02:51,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 16:02:51,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 16:02:51,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 16:02:51,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 16:02:51,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 16:02:51,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 16:02:51,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (1/1) ... [2021-07-05 16:02:51,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:02:51,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 16:02:51,452 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 16:02:51,473 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 16:02:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-05 16:02:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-05 16:02:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 16:02:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 16:02:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 16:02:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 16:02:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 16:02:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 16:02:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 16:02:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 16:02:51,489 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 16:02:51,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 16:02:51,794 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-05 16:02:51,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:02:51 BoogieIcfgContainer [2021-07-05 16:02:51,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 16:02:51,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 16:02:51,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 16:02:51,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 16:02:51,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 04:02:50" (1/3) ... [2021-07-05 16:02:51,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ac7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:02:51, skipping insertion in model container [2021-07-05 16:02:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:51" (2/3) ... [2021-07-05 16:02:51,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ac7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:02:51, skipping insertion in model container [2021-07-05 16:02:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:02:51" (3/3) ... [2021-07-05 16:02:51,803 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2021-07-05 16:02:51,808 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 16:02:51,809 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 16:02:51,809 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 16:02:51,809 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 16:02:51,837 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,837 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,838 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,838 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,840 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,841 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,841 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,841 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,850 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,851 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,851 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,851 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,851 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:51,861 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 16:02:51,904 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:02:51,911 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 16:02:51,911 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:02:51,924 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:02:51,946 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions, 134 flow [2021-07-05 16:02:51,948 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 62 transitions, 134 flow [2021-07-05 16:02:51,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 134 flow [2021-07-05 16:02:51,987 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2021-07-05 16:02:51,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 16:02:51,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 4 conditions per place. [2021-07-05 16:02:51,994 INFO L116 LiptonReduction]: Number of co-enabled transitions 866 [2021-07-05 16:02:53,898 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-07-05 16:02:54,193 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-07-05 16:02:54,284 INFO L131 LiptonReduction]: Checked pairs total: 735 [2021-07-05 16:02:54,284 INFO L133 LiptonReduction]: Total number of compositions: 57 [2021-07-05 16:02:54,291 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2021-07-05 16:02:54,298 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 43 states have internal predecessors, (81), 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 16:02:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 43 states have internal predecessors, (81), 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 16:02:54,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:02:54,307 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:02:54,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:02:54,311 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 16:02:54,315 INFO L168 Benchmark]: Toolchain (without parser) took 3362.87 ms. Allocated memory was 50.3 MB in the beginning and 119.5 MB in the end (delta: 69.2 MB). Free memory was 26.1 MB in the beginning and 82.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,316 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:02:54,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.51 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 25.8 MB in the beginning and 46.6 MB in the end (delta: -20.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.84 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,319 INFO L168 Benchmark]: Boogie Preprocessor took 36.71 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 43.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,323 INFO L168 Benchmark]: RCFGBuilder took 363.46 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 41.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,324 INFO L168 Benchmark]: TraceAbstraction took 2516.82 ms. Allocated memory was 67.1 MB in the beginning and 119.5 MB in the end (delta: 52.4 MB). Free memory was 41.5 MB in the beginning and 82.8 MB in the end (delta: -41.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-07-05 16:02:54,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 383.51 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 25.8 MB in the beginning and 46.6 MB in the end (delta: -20.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.84 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.71 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 43.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 363.46 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 41.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2516.82 ms. Allocated memory was 67.1 MB in the beginning and 119.5 MB in the end (delta: 52.4 MB). Free memory was 41.5 MB in the beginning and 82.8 MB in the end (delta: -41.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2336.2ms, 66 PlacesBefore, 18 PlacesAfterwards, 62 TransitionsBefore, 12 TransitionsAfterwards, 866 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 57 TotalNumberOfCompositions, 735 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 718, positive: 712, positive conditional: 0, positive unconditional: 712, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 581, positive: 577, positive conditional: 0, positive unconditional: 577, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 581, positive: 576, positive conditional: 0, positive unconditional: 576, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 718, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 581, unknown conditional: 0, unknown unconditional: 581] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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 16:02:54,355 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 16:02:55,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 16:02:55,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 16:02:55,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 16:02:55,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 16:02:55,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 16:02:55,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 16:02:55,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 16:02:55,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 16:02:55,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 16:02:55,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 16:02:55,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 16:02:55,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 16:02:55,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 16:02:55,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 16:02:55,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 16:02:55,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 16:02:55,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 16:02:55,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 16:02:55,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 16:02:55,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 16:02:55,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 16:02:55,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 16:02:55,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 16:02:55,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 16:02:55,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 16:02:55,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 16:02:55,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 16:02:55,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 16:02:55,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 16:02:55,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 16:02:55,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 16:02:55,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 16:02:55,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 16:02:55,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 16:02:55,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 16:02:55,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 16:02:55,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 16:02:55,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 16:02:55,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 16:02:55,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 16:02:55,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 16:02:55,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 16:02:55,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 16:02:55,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 16:02:55,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 16:02:55,984 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 16:02:55,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 16:02:55,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 16:02:55,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 16:02:55,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 16:02:55,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 16:02:55,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 16:02:55,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 16:02:55,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 16:02:55,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 16:02:55,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 16:02:55,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 16:02:55,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:02:55,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 16:02:55,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 16:02:55,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 16:02:55,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6129a07d56a559cf710c4b8adbd271c62ceccda [2021-07-05 16:02:56,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 16:02:56,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 16:02:56,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 16:02:56,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 16:02:56,272 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 16:02:56,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-07-05 16:02:56,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d65b36c5/8497066365924db8a2934fcd471196cd/FLAGe7d691008 [2021-07-05 16:02:56,745 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 16:02:56,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2021-07-05 16:02:56,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d65b36c5/8497066365924db8a2934fcd471196cd/FLAGe7d691008 [2021-07-05 16:02:56,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d65b36c5/8497066365924db8a2934fcd471196cd [2021-07-05 16:02:56,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 16:02:56,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 16:02:56,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 16:02:56,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 16:02:56,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 16:02:56,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:02:56" (1/1) ... [2021-07-05 16:02:56,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c5eaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:56, skipping insertion in model container [2021-07-05 16:02:56,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:02:56" (1/1) ... [2021-07-05 16:02:56,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 16:02:56,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 16:02:57,038 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-lit/fkp2013-2.i[30003,30016] [2021-07-05 16:02:57,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:02:57,054 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 16:02:57,083 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-lit/fkp2013-2.i[30003,30016] [2021-07-05 16:02:57,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:02:57,132 INFO L208 MainTranslator]: Completed translation [2021-07-05 16:02:57,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57 WrapperNode [2021-07-05 16:02:57,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 16:02:57,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 16:02:57,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 16:02:57,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 16:02:57,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 16:02:57,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 16:02:57,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 16:02:57,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 16:02:57,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 16:02:57,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 16:02:57,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 16:02:57,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 16:02:57,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (1/1) ... [2021-07-05 16:02:57,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:02:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 16:02:57,210 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 16:02:57,227 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 16:02:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-05 16:02:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-05 16:02:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 16:02:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 16:02:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 16:02:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 16:02:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 16:02:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 16:02:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 16:02:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 16:02:57,253 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 16:02:57,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 16:02:57,534 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-05 16:02:57,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:02:57 BoogieIcfgContainer [2021-07-05 16:02:57,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 16:02:57,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 16:02:57,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 16:02:57,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 16:02:57,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 04:02:56" (1/3) ... [2021-07-05 16:02:57,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@822abb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:02:57, skipping insertion in model container [2021-07-05 16:02:57,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:02:57" (2/3) ... [2021-07-05 16:02:57,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@822abb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:02:57, skipping insertion in model container [2021-07-05 16:02:57,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:02:57" (3/3) ... [2021-07-05 16:02:57,547 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2021-07-05 16:02:57,551 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 16:02:57,551 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 16:02:57,552 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-05 16:02:57,552 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 16:02:57,576 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,576 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,576 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,579 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,579 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,582 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,583 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,583 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,592 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,592 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,592 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,592 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,592 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:02:57,602 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 16:02:57,638 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:02:57,644 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 16:02:57,644 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:02:57,663 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:02:57,682 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 136 flow [2021-07-05 16:02:57,684 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 136 flow [2021-07-05 16:02:57,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 136 flow [2021-07-05 16:02:57,716 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2021-07-05 16:02:57,717 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 16:02:57,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 4 conditions per place. [2021-07-05 16:02:57,725 INFO L116 LiptonReduction]: Number of co-enabled transitions 866 [2021-07-05 16:03:00,723 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-07-05 16:03:01,055 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-05 16:03:01,460 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-07-05 16:03:01,831 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-05 16:03:01,838 INFO L131 LiptonReduction]: Checked pairs total: 727 [2021-07-05 16:03:01,838 INFO L133 LiptonReduction]: Total number of compositions: 57 [2021-07-05 16:03:01,845 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2021-07-05 16:03:01,853 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 43 states have internal predecessors, (81), 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 16:03:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 38 states have (on average 2.1315789473684212) internal successors, (81), 43 states have internal predecessors, (81), 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 16:03:01,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:03:01,862 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:03:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:03:01,867 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 16:03:01,870 INFO L168 Benchmark]: Toolchain (without parser) took 5102.06 ms. Allocated memory was 58.7 MB in the beginning and 136.3 MB in the end (delta: 77.6 MB). Free memory was 35.7 MB in the beginning and 58.9 MB in the end (delta: -23.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,871 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:03:01,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.11 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 35.6 MB in the beginning and 49.7 MB in the end (delta: -14.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 47.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,873 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 46.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,877 INFO L168 Benchmark]: RCFGBuilder took 353.20 ms. Allocated memory is still 88.1 MB. Free memory was 46.1 MB in the beginning and 51.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,878 INFO L168 Benchmark]: TraceAbstraction took 4326.96 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 51.3 MB in the beginning and 58.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-07-05 16:03:01,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.11 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 35.6 MB in the beginning and 49.7 MB in the end (delta: -14.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 47.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 46.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 353.20 ms. Allocated memory is still 88.1 MB. Free memory was 46.1 MB in the beginning and 51.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4326.96 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 51.3 MB in the beginning and 58.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4154.0ms, 67 PlacesBefore, 18 PlacesAfterwards, 63 TransitionsBefore, 12 TransitionsAfterwards, 866 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 57 TotalNumberOfCompositions, 727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 703, positive: 697, positive conditional: 0, positive unconditional: 697, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 599, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 599, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 703, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 599, unknown conditional: 0, unknown unconditional: 599] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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 16:03:01,920 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...