./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.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-ext/23_lu-fig2.fixed.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 62fd7ea4bef52a1e791bedc427ce7156627e7f58 .............................................................................................................................................................................................................................................................................................. 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-ext/23_lu-fig2.fixed.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 62fd7ea4bef52a1e791bedc427ce7156627e7f58 ................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:24:01,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:24:01,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:24:01,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:24:01,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:24:01,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:24:01,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:24:01,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:24:01,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:24:01,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:24:01,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:24:01,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:24:01,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:24:01,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:24:01,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:24:01,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:24:01,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:24:01,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:24:01,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:24:01,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:24:01,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:24:01,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:24:01,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:24:01,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:24:01,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:24:01,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:24:01,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:24:01,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:24:01,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:24:01,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:24:01,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:24:01,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:24:01,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:24:01,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:24:01,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:24:01,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:24:01,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:24:01,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:24:01,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:24:01,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:24:01,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:24:01,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 15:24:01,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:24:01,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:24:01,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:24:01,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:24:01,954 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:24:01,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:24:01,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:24:01,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:24:01,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:24:01,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:24:01,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:24:01,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:24:01,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62fd7ea4bef52a1e791bedc427ce7156627e7f58 [2021-07-05 15:24:02,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:24:02,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:24:02,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:24:02,180 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:24:02,181 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:24:02,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-07-05 15:24:02,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1094fb88/2b407bb0703946f7b7c3323c242bbea8/FLAGb46715082 [2021-07-05 15:24:02,659 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:24:02,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-07-05 15:24:02,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1094fb88/2b407bb0703946f7b7c3323c242bbea8/FLAGb46715082 [2021-07-05 15:24:02,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1094fb88/2b407bb0703946f7b7c3323c242bbea8 [2021-07-05 15:24:02,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:24:02,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:24:02,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:24:02,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:24:02,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:24:02,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:24:02" (1/1) ... [2021-07-05 15:24:02,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cd6f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:02, skipping insertion in model container [2021-07-05 15:24:02,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:24:02" (1/1) ... [2021-07-05 15:24:02,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:24:02,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:24:02,949 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-07-05 15:24:02,952 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-07-05 15:24:02,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:24:02,961 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:24:02,979 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-07-05 15:24:02,980 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-07-05 15:24:02,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:24:03,034 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:24:03,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03 WrapperNode [2021-07-05 15:24:03,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:24:03,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:24:03,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:24:03,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:24:03,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:24:03,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:24:03,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:24:03,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:24:03,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:24:03,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:24:03,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:24:03,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:24:03,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (1/1) ... [2021-07-05 15:24:03,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:24:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:24:03,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 15:24:03,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 15:24:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 15:24:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 15:24:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 15:24:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:24:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:24:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 15:24:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:24:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:24:03,151 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:24:03,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:24:03,670 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-05 15:24:03,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:24:03 BoogieIcfgContainer [2021-07-05 15:24:03,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:24:03,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:24:03,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:24:03,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:24:03,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:24:02" (1/3) ... [2021-07-05 15:24:03,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a801da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:24:03, skipping insertion in model container [2021-07-05 15:24:03,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:03" (2/3) ... [2021-07-05 15:24:03,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a801da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:24:03, skipping insertion in model container [2021-07-05 15:24:03,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:24:03" (3/3) ... [2021-07-05 15:24:03,677 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2021-07-05 15:24:03,683 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:24:03,683 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:24:03,684 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:24:03,684 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:24:03,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,706 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,706 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,706 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,706 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,706 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,707 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,708 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,709 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,709 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,710 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,711 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:03,717 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:24:03,747 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:24:03,751 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:24:03,751 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:24:03,758 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:24:03,765 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 50 transitions, 105 flow [2021-07-05 15:24:03,766 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 50 transitions, 105 flow [2021-07-05 15:24:03,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 50 transitions, 105 flow [2021-07-05 15:24:03,782 INFO L129 PetriNetUnfolder]: 2/49 cut-off events. [2021-07-05 15:24:03,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:24:03,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2021-07-05 15:24:03,785 INFO L116 LiptonReduction]: Number of co-enabled transitions 396 [2021-07-05 15:24:05,548 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2021-07-05 15:24:05,707 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2021-07-05 15:24:05,785 INFO L131 LiptonReduction]: Checked pairs total: 819 [2021-07-05 15:24:05,785 INFO L133 LiptonReduction]: Total number of compositions: 39 [2021-07-05 15:24:05,791 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-07-05 15:24:05,796 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:24:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:24:05,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:24:05,802 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:24:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:24:05,805 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:24:05,808 INFO L168 Benchmark]: Toolchain (without parser) took 3111.83 ms. Allocated memory was 67.1 MB in the beginning and 125.8 MB in the end (delta: 58.7 MB). Free memory was 46.9 MB in the beginning and 102.0 MB in the end (delta: -55.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:05,808 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 67.1 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:24:05,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.78 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.6 MB in the beginning and 64.0 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:05,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.31 ms. Allocated memory is still 81.8 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:05,809 INFO L168 Benchmark]: Boogie Preprocessor took 15.72 ms. Allocated memory is still 81.8 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:05,810 INFO L168 Benchmark]: RCFGBuilder took 586.55 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 41.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:05,810 INFO L168 Benchmark]: TraceAbstraction took 2133.83 ms. Allocated memory was 81.8 MB in the beginning and 125.8 MB in the end (delta: 44.0 MB). Free memory was 41.0 MB in the beginning and 102.0 MB in the end (delta: -60.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:24:05,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 67.1 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.78 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.6 MB in the beginning and 64.0 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.31 ms. Allocated memory is still 81.8 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.72 ms. Allocated memory is still 81.8 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 586.55 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 41.9 MB in the end (delta: 18.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2133.83 ms. Allocated memory was 81.8 MB in the beginning and 125.8 MB in the end (delta: 44.0 MB). Free memory was 41.0 MB in the beginning and 102.0 MB in the end (delta: -60.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2018.9ms, 52 PlacesBefore, 17 PlacesAfterwards, 50 TransitionsBefore, 14 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, 819 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 584, positive: 512, positive conditional: 0, positive unconditional: 512, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 301, positive: 279, positive conditional: 0, positive unconditional: 279, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 301, positive: 264, positive conditional: 0, positive unconditional: 264, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 163, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 584, positive: 233, positive conditional: 0, positive unconditional: 233, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 301, unknown conditional: 0, unknown unconditional: 301] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:24:05,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:24:07,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:24:07,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:24:07,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:24:07,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:24:07,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:24:07,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:24:07,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:24:07,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:24:07,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:24:07,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:24:07,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:24:07,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:24:07,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:24:07,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:24:07,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:24:07,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:24:07,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:24:07,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:24:07,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:24:07,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:24:07,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:24:07,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:24:07,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:24:07,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:24:07,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:24:07,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:24:07,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:24:07,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:24:07,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:24:07,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:24:07,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:24:07,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:24:07,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:24:07,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:24:07,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:24:07,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:24:07,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:24:07,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:24:07,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:24:07,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:24:07,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 15:24:07,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:24:07,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:24:07,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:24:07,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:24:07,426 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:24:07,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:24:07,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:24:07,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:24:07,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:24:07,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:24:07,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:24:07,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:24:07,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:24:07,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:24:07,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:24:07,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:24:07,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:24:07,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:24:07,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:24:07,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 15:24:07,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62fd7ea4bef52a1e791bedc427ce7156627e7f58 [2021-07-05 15:24:07,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:24:07,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:24:07,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:24:07,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:24:07,714 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:24:07,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-07-05 15:24:07,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9771d809/0979dc0da44048308099ae546a6a43df/FLAGac8e1f6e4 [2021-07-05 15:24:08,153 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:24:08,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-07-05 15:24:08,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9771d809/0979dc0da44048308099ae546a6a43df/FLAGac8e1f6e4 [2021-07-05 15:24:08,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9771d809/0979dc0da44048308099ae546a6a43df [2021-07-05 15:24:08,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:24:08,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:24:08,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:24:08,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:24:08,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:24:08,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:08,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b915b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08, skipping insertion in model container [2021-07-05 15:24:08,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:08,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:24:08,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:24:08,831 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-07-05 15:24:08,836 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-07-05 15:24:08,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:24:08,858 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:24:08,898 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-ext/23_lu-fig2.fixed.i[30382,30395] [2021-07-05 15:24:08,900 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-ext/23_lu-fig2.fixed.i[30752,30765] [2021-07-05 15:24:08,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:24:08,960 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:24:08,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08 WrapperNode [2021-07-05 15:24:08,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:24:08,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:24:08,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:24:08,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:24:08,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:08,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:24:09,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:24:09,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:24:09,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:24:09,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:24:09,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:24:09,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:24:09,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:24:09,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (1/1) ... [2021-07-05 15:24:09,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:24:09,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:24:09,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 15:24:09,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 15:24:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-05 15:24:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-05 15:24:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:24:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:24:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 15:24:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 15:24:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:24:09,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:24:09,117 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:24:09,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:24:09,593 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-05 15:24:09,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:24:09 BoogieIcfgContainer [2021-07-05 15:24:09,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:24:09,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:24:09,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:24:09,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:24:09,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:24:08" (1/3) ... [2021-07-05 15:24:09,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc962dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:24:09, skipping insertion in model container [2021-07-05 15:24:09,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:24:08" (2/3) ... [2021-07-05 15:24:09,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc962dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:24:09, skipping insertion in model container [2021-07-05 15:24:09,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:24:09" (3/3) ... [2021-07-05 15:24:09,601 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2021-07-05 15:24:09,605 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:24:09,606 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:24:09,606 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:24:09,606 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:24:09,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,623 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,624 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:24:09,628 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:24:09,653 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:24:09,657 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:24:09,657 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:24:09,664 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:24:09,669 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 51 transitions, 107 flow [2021-07-05 15:24:09,671 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 51 transitions, 107 flow [2021-07-05 15:24:09,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 51 transitions, 107 flow [2021-07-05 15:24:09,685 INFO L129 PetriNetUnfolder]: 2/50 cut-off events. [2021-07-05 15:24:09,685 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:24:09,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2021-07-05 15:24:09,687 INFO L116 LiptonReduction]: Number of co-enabled transitions 396 [2021-07-05 15:24:11,935 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-07-05 15:24:12,064 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-07-05 15:24:12,281 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-07-05 15:24:12,412 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-07-05 15:24:12,414 INFO L131 LiptonReduction]: Checked pairs total: 799 [2021-07-05 15:24:12,414 INFO L133 LiptonReduction]: Total number of compositions: 40 [2021-07-05 15:24:12,420 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2021-07-05 15:24:12,424 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:24:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 2.0) internal successors, (68), 37 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:24:12,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:24:12,431 INFO L374 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:24:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:24:12,434 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-05 15:24:12,436 INFO L168 Benchmark]: Toolchain (without parser) took 3917.90 ms. Allocated memory was 65.0 MB in the beginning and 121.6 MB in the end (delta: 56.6 MB). Free memory was 39.7 MB in the beginning and 44.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:12,436 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:24:12,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.02 ms. Allocated memory is still 65.0 MB. Free memory was 39.6 MB in the beginning and 42.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:12,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.64 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 40.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:12,437 INFO L168 Benchmark]: Boogie Preprocessor took 53.07 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 38.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:24:12,438 INFO L168 Benchmark]: RCFGBuilder took 530.40 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 52.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:12,438 INFO L168 Benchmark]: TraceAbstraction took 2837.76 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 51.8 MB in the beginning and 44.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:24:12,440 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 50.3 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 441.02 ms. Allocated memory is still 65.0 MB. Free memory was 39.6 MB in the beginning and 42.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.64 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 40.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.07 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 38.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 530.40 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 52.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2837.76 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 51.8 MB in the beginning and 44.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2742.9ms, 53 PlacesBefore, 17 PlacesAfterwards, 51 TransitionsBefore, 14 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 554, positive: 480, positive conditional: 0, positive unconditional: 480, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 303, positive: 282, positive conditional: 0, positive unconditional: 282, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 303, positive: 266, positive conditional: 0, positive unconditional: 266, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 216, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 554, positive: 198, positive conditional: 0, positive unconditional: 198, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 303, unknown conditional: 0, unknown unconditional: 303] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:24:12,467 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...