/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_INSENSITIVE.epf -i ../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:23:23,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:23:23,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:23:23,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:23:23,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:23:23,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:23:23,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:23:23,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:23:23,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:23:23,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:23:23,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:23:23,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:23:23,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:23:23,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:23:23,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:23:23,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:23:23,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:23:23,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:23:23,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:23:23,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:23:23,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:23:23,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:23:23,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:23:23,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:23:23,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-21 14:23:23,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:23:23,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:23:23,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:23:23,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:23:23,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:23:23,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:23:23,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:23:23,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:23:23,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:23:23,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:23:23,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:23:23,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_INSENSITIVE.epf [2022-09-21 14:23:23,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:23:23,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:23:23,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:23:23,851 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:23:23,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:23:23,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:23:23,852 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:23:23,852 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:23:23,852 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:23:23,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:23:23,853 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:23:23,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:23:23,853 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:23:23,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:23:23,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:23:23,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:23:23,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:23:23,855 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:23:23,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:23:23,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:23:23,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:23:23,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:23:23,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:23:23,856 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:23:23,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:23:23,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:23:24,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:23:24,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:23:24,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:23:24,117 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:23:24,118 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:23:24,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl [2022-09-21 14:23:24,120 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl' [2022-09-21 14:23:24,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:23:24,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:23:24,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:23:24,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:23:24,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:23:24,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,164 INFO L138 Inliner]: procedures = 2, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:23:24,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:23:24,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:23:24,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:23:24,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:23:24,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:23:24,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:23:24,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:23:24,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:23:24,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:23:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:23:24,213 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) [2022-09-21 14:23:24,220 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 [2022-09-21 14:23:24,251 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2022-09-21 14:23:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-09-21 14:23:24,251 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-09-21 14:23:24,252 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:23:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:23:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:23:24,253 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-21 14:23:24,298 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:23:24,299 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:23:24,413 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:23:24,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:23:24,426 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:23:24,429 INFO L202 PluginConnector]: Adding new model ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:23:24 BoogieIcfgContainer [2022-09-21 14:23:24,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:23:24,432 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:23:24,441 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:23:24,441 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:23:24,442 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:23:24" (1/1) ... [2022-09-21 14:23:24,515 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2 has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.util.datastructures.UnionFind.union(UnionFind.java:436) at de.uni_freiburg.informatik.ultimate.util.datastructures.UnionFind.union(UnionFind.java:419) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngineConcurrentUtils.computeDependenciesBetweenVars(FixpointEngineConcurrentUtils.java:875) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngineConcurrentUtils.initialize(FixpointEngineConcurrentUtils.java:443) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngineConcurrentUtils.(FixpointEngineConcurrentUtils.java:116) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngineConcurrent.(FixpointEngineConcurrent.java:117) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runConcurrent(AbstractInterpreter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.AbstractInterpretationRcfgObserver.process(AbstractInterpretationRcfgObserver.java:72) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) 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) [2022-09-21 14:23:24,523 INFO L158 Benchmark]: Toolchain (without parser) took 383.29ms. Allocated memory is still 206.6MB. Free memory was 158.7MB in the beginning and 174.7MB in the end (delta: -16.0MB). Peak memory consumption was 17.9MB. Max. memory is 8.0GB. [2022-09-21 14:23:24,523 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 206.6MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:23:24,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.13ms. Allocated memory is still 206.6MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:23:24,525 INFO L158 Benchmark]: Boogie Preprocessor took 14.73ms. Allocated memory is still 206.6MB. Free memory was 157.1MB in the beginning and 156.3MB in the end (delta: 858.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:23:24,525 INFO L158 Benchmark]: RCFGBuilder took 246.88ms. Allocated memory is still 206.6MB. Free memory was 156.2MB in the beginning and 147.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-21 14:23:24,526 INFO L158 Benchmark]: Abstract Interpretation took 89.37ms. Allocated memory is still 206.6MB. Free memory was 147.5MB in the beginning and 175.0MB in the end (delta: -27.5MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-09-21 14:23:24,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 206.6MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.13ms. Allocated memory is still 206.6MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.73ms. Allocated memory is still 206.6MB. Free memory was 157.1MB in the beginning and 156.3MB in the end (delta: 858.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 246.88ms. Allocated memory is still 206.6MB. Free memory was 156.2MB in the beginning and 147.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 89.37ms. Allocated memory is still 206.6MB. Free memory was 147.5MB in the beginning and 175.0MB in the end (delta: -27.5MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: NullPointerException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.UnionFind.union(UnionFind.java:436) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-09-21 14:23:24,583 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...