./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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-nondet/nondet-loop-bound-variant-1.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 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:26:42,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:26:42,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:26:42,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:26:42,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:26:42,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:26:42,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:26:42,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:26:42,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:26:42,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:26:42,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:26:42,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:26:42,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:26:42,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:26:42,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:26:42,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:26:42,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:26:42,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:26:42,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:26:42,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:26:42,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:26:42,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:26:42,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:26:42,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:26:42,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:26:42,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:26:42,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:26:42,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:26:42,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:26:42,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:26:42,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:26:42,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:26:42,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:26:42,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:26:42,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:26:42,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:26:42,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:26:42,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:26:42,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:26:42,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:26:42,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:26:42,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:26:42,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:26:42,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:26:42,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:26:42,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:26:42,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:26:42,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:26:42,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:26:42,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:26:42,647 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:26:42,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:26:42,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:26:42,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:26:42,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:26:42,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:26:42,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:26:42,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:26:42,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:26:42,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:26:42,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:26:42,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:26:42,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:26:42,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:26:42,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:26:42,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:26:42,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:26:42,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:26:42,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:26:42,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:26:42,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:26:42,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:26:42,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:26:42,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:26:42,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:26:42,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:26:42,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 [2021-12-15 12:26:42,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:26:42,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:26:42,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:26:42,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:26:42,921 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:26:42,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2021-12-15 12:26:42,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06fc368e/6d5e645ad7f44817998a2c5f5c2abf21/FLAGca6c5f208 [2021-12-15 12:26:43,390 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:26:43,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2021-12-15 12:26:43,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06fc368e/6d5e645ad7f44817998a2c5f5c2abf21/FLAGca6c5f208 [2021-12-15 12:26:43,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06fc368e/6d5e645ad7f44817998a2c5f5c2abf21 [2021-12-15 12:26:43,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:26:43,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:26:43,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:26:43,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:26:43,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:26:43,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:26:43" (1/1) ... [2021-12-15 12:26:43,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b55cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:43, skipping insertion in model container [2021-12-15 12:26:43,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:26:43" (1/1) ... [2021-12-15 12:26:43,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:26:43,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:26:44,064 WARN L230 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-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2021-12-15 12:26:44,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:26:44,091 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:26:44,117 WARN L230 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-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2021-12-15 12:26:44,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:26:44,154 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:26:44,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44 WrapperNode [2021-12-15 12:26:44,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:26:44,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:26:44,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:26:44,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:26:44,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,216 INFO L137 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2021-12-15 12:26:44,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:26:44,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:26:44,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:26:44,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:26:44,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:26:44,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:26:44,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:26:44,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:26:44,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (1/1) ... [2021-12-15 12:26:44,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:26:44,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:26:44,281 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) [2021-12-15 12:26:44,301 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 [2021-12-15 12:26:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-15 12:26:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-15 12:26:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-15 12:26:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-15 12:26:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:26:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-15 12:26:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:26:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:26:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:26:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:26:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:26:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:26:44,324 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:26:44,447 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:26:44,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:26:44,615 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:26:44,627 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:26:44,627 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:26:44,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:26:44 BoogieIcfgContainer [2021-12-15 12:26:44,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:26:44,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:26:44,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:26:44,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:26:44,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:26:43" (1/3) ... [2021-12-15 12:26:44,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:26:44, skipping insertion in model container [2021-12-15 12:26:44,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:44" (2/3) ... [2021-12-15 12:26:44,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:26:44, skipping insertion in model container [2021-12-15 12:26:44,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:26:44" (3/3) ... [2021-12-15 12:26:44,637 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2021-12-15 12:26:44,645 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:26:44,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:26:44,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:26:44,645 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:26:44,677 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,678 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,679 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,679 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,679 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,679 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,680 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,680 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,681 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,681 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,681 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,681 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,683 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,683 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,684 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,684 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,684 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,685 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,686 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,686 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,686 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,687 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,687 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,687 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,687 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,688 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,688 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,688 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,688 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,688 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,689 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,689 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,689 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,697 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,698 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,698 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,698 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,698 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,698 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,699 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,699 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,699 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,700 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,700 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,700 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,700 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,701 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,701 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,701 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,701 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,701 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,702 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:44,703 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 12:26:44,709 INFO L158 Benchmark]: Toolchain (without parser) took 992.61ms. Allocated memory is still 98.6MB. Free memory was 63.6MB in the beginning and 73.7MB in the end (delta: -10.1MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,711 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:26:44,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.94ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 65.2MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.73ms. Allocated memory is still 98.6MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,713 INFO L158 Benchmark]: Boogie Preprocessor took 30.41ms. Allocated memory is still 98.6MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,714 INFO L158 Benchmark]: RCFGBuilder took 381.32ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 49.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,715 INFO L158 Benchmark]: TraceAbstraction took 75.26ms. Allocated memory is still 98.6MB. Free memory was 48.7MB in the beginning and 73.7MB in the end (delta: -25.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-12-15 12:26:44,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.94ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 65.2MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.73ms. Allocated memory is still 98.6MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.41ms. Allocated memory is still 98.6MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.32ms. Allocated memory is still 98.6MB. Free memory was 61.7MB in the beginning and 49.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 75.26ms. Allocated memory is still 98.6MB. Free memory was 48.7MB in the beginning and 73.7MB in the end (delta: -25.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:26:44,758 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-nondet/nondet-loop-bound-variant-1.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 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:26:46,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:26:46,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:26:46,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:26:46,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:26:46,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:26:46,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:26:46,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:26:46,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:26:46,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:26:46,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:26:46,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:26:46,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:26:46,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:26:46,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:26:46,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:26:46,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:26:46,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:26:46,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:26:46,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:26:46,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:26:46,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:26:46,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:26:46,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:26:46,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:26:46,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:26:46,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:26:46,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:26:46,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:26:46,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:26:46,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:26:46,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:26:46,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:26:46,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:26:46,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:26:46,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:26:46,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:26:46,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:26:46,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:26:46,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:26:46,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:26:46,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:26:46,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:26:46,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:26:46,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:26:46,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:26:46,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:26:46,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:26:46,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:26:46,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:26:46,644 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:26:46,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:26:46,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:26:46,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:26:46,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:26:46,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:26:46,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:26:46,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:26:46,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:26:46,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:26:46,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:26:46,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:26:46,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:26:46,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:26:46,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:26:46,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:26:46,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:26:46,659 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:26:46,659 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:26:46,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:26:46,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:26:46,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:26:46,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:26:46,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:26:46,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 [2021-12-15 12:26:46,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:26:46,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:26:46,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:26:46,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:26:46,992 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:26:46,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2021-12-15 12:26:47,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c4f2edd/1058d361009f4e7c89a87a7759a1d41f/FLAGb708e5e60 [2021-12-15 12:26:47,555 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:26:47,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2021-12-15 12:26:47,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c4f2edd/1058d361009f4e7c89a87a7759a1d41f/FLAGb708e5e60 [2021-12-15 12:26:48,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c4f2edd/1058d361009f4e7c89a87a7759a1d41f [2021-12-15 12:26:48,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:26:48,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:26:48,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:26:48,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:26:48,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:26:48,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6974add6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48, skipping insertion in model container [2021-12-15 12:26:48,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:26:48,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:26:48,358 WARN L230 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-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2021-12-15 12:26:48,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:26:48,400 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:26:48,454 WARN L230 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-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2021-12-15 12:26:48,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:26:48,507 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:26:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48 WrapperNode [2021-12-15 12:26:48,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:26:48,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:26:48,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:26:48,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:26:48,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,575 INFO L137 Inliner]: procedures = 175, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2021-12-15 12:26:48,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:26:48,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:26:48,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:26:48,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:26:48,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:26:48,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:26:48,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:26:48,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:26:48,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (1/1) ... [2021-12-15 12:26:48,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:26:48,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:26:48,676 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) [2021-12-15 12:26:48,684 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 [2021-12-15 12:26:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-15 12:26:48,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-15 12:26:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-15 12:26:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-15 12:26:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-15 12:26:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:26:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 12:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:26:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:26:48,724 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:26:48,888 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:26:48,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:26:49,079 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:26:49,085 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:26:49,086 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 12:26:49,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:26:49 BoogieIcfgContainer [2021-12-15 12:26:49,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:26:49,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:26:49,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:26:49,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:26:49,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:26:48" (1/3) ... [2021-12-15 12:26:49,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de63d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:26:49, skipping insertion in model container [2021-12-15 12:26:49,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:26:48" (2/3) ... [2021-12-15 12:26:49,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de63d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:26:49, skipping insertion in model container [2021-12-15 12:26:49,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:26:49" (3/3) ... [2021-12-15 12:26:49,094 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2021-12-15 12:26:49,100 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:26:49,101 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:26:49,101 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:26:49,101 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:26:49,135 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,135 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,136 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,136 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,138 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,138 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,138 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,138 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,139 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,140 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,140 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,140 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,140 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,140 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,141 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,141 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,141 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,142 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,142 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,142 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,143 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,143 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,144 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,144 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,145 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,145 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,145 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,145 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,146 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,146 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,146 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,146 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,147 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,147 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,148 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,151 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,152 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,152 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,153 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,154 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,155 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,156 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,157 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:26:49,159 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 12:26:49,165 INFO L158 Benchmark]: Toolchain (without parser) took 1113.95ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 33.1MB in the end (delta: -3.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,166 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:26:49,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.42ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 41.8MB in the end (delta: -12.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.36ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,169 INFO L158 Benchmark]: Boogie Preprocessor took 54.09ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 37.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,170 INFO L158 Benchmark]: RCFGBuilder took 456.51ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 39.4MB in the end (delta: -1.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,170 INFO L158 Benchmark]: TraceAbstraction took 74.39ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 33.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:26:49,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.42ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 41.8MB in the end (delta: -12.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.36ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.09ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 37.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.51ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 39.4MB in the end (delta: -1.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 74.39ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 33.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:26:49,218 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable