/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --icfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --traceabstraction.dfs.order.used.in.por BY_SERIAL_NUMBER --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL --traceabstraction.commutativity.condition.synthesis NONE -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-04aa6ae-m [2025-04-16 01:28:30,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-16 01:28:30,635 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-16 01:28:30,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-16 01:28:30,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-16 01:28:30,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-16 01:28:30,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-16 01:28:30,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-16 01:28:30,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-16 01:28:30,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-16 01:28:30,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Use SBE=true [2025-04-16 01:28:30,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-16 01:28:30,664 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-16 01:28:30,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:28:30,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:28:30,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-16 01:28:30,665 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-16 01:28:30,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-16 01:28:30,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-16 01:28:30,666 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-16 01:28:30,666 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-16 01:28:30,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> BY_SERIAL_NUMBER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-16 01:28:30,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-16 01:28:30,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-16 01:28:30,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-16 01:28:30,907 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-16 01:28:30,908 INFO L274 PluginConnector]: CDTParser initialized [2025-04-16 01:28:30,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-16 01:28:32,179 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d023c21b1/455f7119e974476f952b80c040df3c48/FLAGd0fec349c [2025-04-16 01:28:32,452 INFO L389 CDTParser]: Found 1 translation units. [2025-04-16 01:28:32,453 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-16 01:28:32,463 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d023c21b1/455f7119e974476f952b80c040df3c48/FLAGd0fec349c [2025-04-16 01:28:33,230 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d023c21b1/455f7119e974476f952b80c040df3c48 [2025-04-16 01:28:33,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-16 01:28:33,235 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-16 01:28:33,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-16 01:28:33,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-16 01:28:33,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-16 01:28:33,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b37893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33, skipping insertion in model container [2025-04-16 01:28:33,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-16 01:28:33,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 01:28:33,535 INFO L200 MainTranslator]: Completed pre-run [2025-04-16 01:28:33,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 01:28:33,616 INFO L204 MainTranslator]: Completed translation [2025-04-16 01:28:33,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33 WrapperNode [2025-04-16 01:28:33,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-16 01:28:33,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-16 01:28:33,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-16 01:28:33,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-16 01:28:33,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,665 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 923 [2025-04-16 01:28:33,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-16 01:28:33,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-16 01:28:33,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-16 01:28:33,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-16 01:28:33,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,694 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-16 01:28:33,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-16 01:28:33,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-16 01:28:33,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-16 01:28:33,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:28:33" (1/1) ... [2025-04-16 01:28:33,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:28:33,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 01:28:33,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-16 01:28:33,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-16 01:28:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-16 01:28:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-16 01:28:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-16 01:28:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-16 01:28:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-16 01:28:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-16 01:28:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-16 01:28:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-16 01:28:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-16 01:28:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-16 01:28:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-16 01:28:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-16 01:28:33,766 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-16 01:28:33,919 INFO L234 CfgBuilder]: Building ICFG [2025-04-16 01:28:33,921 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-16 01:28:34,903 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-16 01:28:34,904 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-16 01:28:34,904 INFO L294 CfgBuilder]: Performing block encoding [2025-04-16 01:28:36,457 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume #t~short8;#race~y$w_buff0~0 := 0;assume 0 == #race~y$w_buff0~0;#t~ite11 := ~y$w_buff0~0;ParallelCodeBlock1: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume !#t~short8;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short9 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short9;ParallelCodeBlock1: assume #t~short9;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short9 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short9;#race~y$w_buff1~0 := 0;assume 0 == #race~y$w_buff1~0;#t~ite10 := ~y$w_buff1~0;ParallelCodeBlock1: assume !#t~short9;#race~y~0 := 0;assume 0 == #race~y~0;#t~ite10 := ~y~0;}EndParallelComposition#t~ite11 := #t~ite10;}EndParallelComposition~y~0 := #t~ite11;havoc #t~nondet12;#race~y~0 := #t~nondet12;assume #race~y~0 == #t~nondet12;havoc #t~short8;havoc #t~ite11;havoc #t~short9;havoc #t~ite10;havoc #t~nondet12;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short13 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short13 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short13;#t~ite14 := 0;ParallelCodeBlock1: assume !#t~short13;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~ite14 := ~y$w_buff0_used~0;}EndParallelComposition~y$w_buff0_used~0 := (if 0 == #t~ite14 % 256 then 0 else 1);havoc #t~nondet15;#race~y$w_buff0_used~0 := #t~nondet15;assume #race~y$w_buff0_used~0 == #t~nondet15;havoc #t~short13;havoc #t~ite14;havoc #t~nondet15;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short16 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short16;ParallelCodeBlock1: assume #t~short16;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short16 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short16;BeginParallelComposition{ParallelCodeBlock0: assume #t~short18;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short17 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short17;ParallelCodeBlock1: assume #t~short17;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short17 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short17;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~ite19 := ~y$w_buff1_used~0;}EndParallelComposition~y$w_buff1_used~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~y$w_buff1_used~0 := #t~nondet20;assume #race~y$w_buff1_used~0 == #t~nondet20;havoc #t~short16;havoc #t~short17;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short21 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short21 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short21;#t~ite22 := 0;ParallelCodeBlock1: assume !#t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~ite22 := ~y$r_buff0_thd2~0;}EndParallelComposition~y$r_buff0_thd2~0 := (if 0 == #t~ite22 % 256 then 0 else 1);havoc #t~nondet23;#race~y$r_buff0_thd2~0 := #t~nondet23;assume #race~y$r_buff0_thd2~0 == #t~nondet23;havoc #t~short21;havoc #t~ite22;havoc #t~nondet23;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short24 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short24;ParallelCodeBlock1: assume #t~short24;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short24 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short24;BeginParallelComposition{ParallelCodeBlock0: assume #t~short26;ParallelCodeBlock1: assume !#t~short26;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short25 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short25;ParallelCodeBlock1: assume #t~short25;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short25 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short25;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short26;#t~ite27 := 0;ParallelCodeBlock1: assume !#t~short26;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~ite27 := ~y$r_buff1_thd2~0;}EndParallelComposition~y$r_buff1_thd2~0 := (if 0 == #t~ite27 % 256 then 0 else 1);havoc #t~nondet28;#race~y$r_buff1_thd2~0 := #t~nondet28;assume #race~y$r_buff1_thd2~0 == #t~nondet28;havoc #t~short24;havoc #t~short25;havoc #t~short26;havoc #t~ite27;havoc #t~nondet28;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:310) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-16 01:28:36,461 INFO L158 Benchmark]: Toolchain (without parser) took 3226.11ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 98.0MB in the beginning and 216.6MB in the end (delta: -118.6MB). Peak memory consumption was 214.9MB. Max. memory is 8.0GB. [2025-04-16 01:28:36,462 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-16 01:28:36,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.50ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 68.8MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-16 01:28:36,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.43ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 64.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 01:28:36,462 INFO L158 Benchmark]: Boogie Preprocessor took 45.55ms. Allocated memory is still 142.6MB. Free memory was 64.1MB in the beginning and 60.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 01:28:36,463 INFO L158 Benchmark]: RCFGBuilder took 2747.68ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 59.9MB in the beginning and 216.6MB in the end (delta: -156.7MB). Peak memory consumption was 177.1MB. Max. memory is 8.0GB. [2025-04-16 01:28:36,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 381.50ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 68.8MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.43ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 64.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.55ms. Allocated memory is still 142.6MB. Free memory was 64.1MB in the beginning and 60.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2747.68ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 59.9MB in the beginning and 216.6MB in the end (delta: -156.7MB). Peak memory consumption was 177.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume #t~short8;#race~y$w_buff0~0 := 0;assume 0 == #race~y$w_buff0~0;#t~ite11 := ~y$w_buff0~0;ParallelCodeBlock1: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume !#t~short8;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short9 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short9;ParallelCodeBlock1: assume #t~short9;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short9 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short9;#race~y$w_buff1~0 := 0;assume 0 == #race~y$w_buff1~0;#t~ite10 := ~y$w_buff1~0;ParallelCodeBlock1: assume !#t~short9;#race~y~0 := 0;assume 0 == #race~y~0;#t~ite10 := ~y~0;}EndParallelComposition#t~ite11 := #t~ite10;}EndParallelComposition~y~0 := #t~ite11;havoc #t~nondet12;#race~y~0 := #t~nondet12;assume #race~y~0 == #t~nondet12;havoc #t~short8;havoc #t~ite11;havoc #t~short9;havoc #t~ite10;havoc #t~nondet12;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short13 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short13 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short13;#t~ite14 := 0;ParallelCodeBlock1: assume !#t~short13;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~ite14 := ~y$w_buff0_used~0;}EndParallelComposition~y$w_buff0_used~0 := (if 0 == #t~ite14 % 256 then 0 else 1);havoc #t~nondet15;#race~y$w_buff0_used~0 := #t~nondet15;assume #race~y$w_buff0_used~0 == #t~nondet15;havoc #t~short13;havoc #t~ite14;havoc #t~nondet15;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short16 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short16;ParallelCodeBlock1: assume #t~short16;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short16 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short16;BeginParallelComposition{ParallelCodeBlock0: assume #t~short18;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short17 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short17;ParallelCodeBlock1: assume #t~short17;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short17 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short17;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~ite19 := ~y$w_buff1_used~0;}EndParallelComposition~y$w_buff1_used~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~y$w_buff1_used~0 := #t~nondet20;assume #race~y$w_buff1_used~0 == #t~nondet20;havoc #t~short16;havoc #t~short17;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short21 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short21 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short21;#t~ite22 := 0;ParallelCodeBlock1: assume !#t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~ite22 := ~y$r_buff0_thd2~0;}EndParallelComposition~y$r_buff0_thd2~0 := (if 0 == #t~ite22 % 256 then 0 else 1);havoc #t~nondet23;#race~y$r_buff0_thd2~0 := #t~nondet23;assume #race~y$r_buff0_thd2~0 == #t~nondet23;havoc #t~short21;havoc #t~ite22;havoc #t~nondet23;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short24 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short24;ParallelCodeBlock1: assume #t~short24;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short24 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short24;BeginParallelComposition{ParallelCodeBlock0: assume #t~short26;ParallelCodeBlock1: assume !#t~short26;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short25 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short25;ParallelCodeBlock1: assume #t~short25;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short25 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short25;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short26;#t~ite27 := 0;ParallelCodeBlock1: assume !#t~short26;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~ite27 := ~y$r_buff1_thd2~0;}EndParallelComposition~y$r_buff1_thd2~0 := (if 0 == #t~ite27 % 256 then 0 else 1);havoc #t~nondet28;#race~y$r_buff1_thd2~0 := #t~nondet28;assume #race~y$r_buff1_thd2~0 == #t~nondet28;havoc #t~short24;havoc #t~short25;havoc #t~short26;havoc #t~ite27;havoc #t~nondet28;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume #t~short8;#race~y$w_buff0~0 := 0;assume 0 == #race~y$w_buff0~0;#t~ite11 := ~y$w_buff0~0;ParallelCodeBlock1: #race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short8 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short8;ParallelCodeBlock1: assume #t~short8;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short8 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionassume !#t~short8;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short9 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short9;ParallelCodeBlock1: assume #t~short9;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short9 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short9;#race~y$w_buff1~0 := 0;assume 0 == #race~y$w_buff1~0;#t~ite10 := ~y$w_buff1~0;ParallelCodeBlock1: assume !#t~short9;#race~y~0 := 0;assume 0 == #race~y~0;#t~ite10 := ~y~0;}EndParallelComposition#t~ite11 := #t~ite10;}EndParallelComposition~y~0 := #t~ite11;havoc #t~nondet12;#race~y~0 := #t~nondet12;assume #race~y~0 == #t~nondet12;havoc #t~short8;havoc #t~ite11;havoc #t~short9;havoc #t~ite10;havoc #t~nondet12;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short13 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short13 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short13;#t~ite14 := 0;ParallelCodeBlock1: assume !#t~short13;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~ite14 := ~y$w_buff0_used~0;}EndParallelComposition~y$w_buff0_used~0 := (if 0 == #t~ite14 % 256 then 0 else 1);havoc #t~nondet15;#race~y$w_buff0_used~0 := #t~nondet15;assume #race~y$w_buff0_used~0 == #t~nondet15;havoc #t~short13;havoc #t~ite14;havoc #t~nondet15;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short16 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short16;ParallelCodeBlock1: assume #t~short16;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short16 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short16;BeginParallelComposition{ParallelCodeBlock0: assume #t~short18;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short17 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short17;ParallelCodeBlock1: assume #t~short17;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short17 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short18 := #t~short17;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~ite19 := ~y$w_buff1_used~0;}EndParallelComposition~y$w_buff1_used~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~y$w_buff1_used~0 := #t~nondet20;assume #race~y$w_buff1_used~0 == #t~nondet20;havoc #t~short16;havoc #t~short17;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short21 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short21 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short21;#t~ite22 := 0;ParallelCodeBlock1: assume !#t~short21;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~ite22 := ~y$r_buff0_thd2~0;}EndParallelComposition~y$r_buff0_thd2~0 := (if 0 == #t~ite22 % 256 then 0 else 1);havoc #t~nondet23;#race~y$r_buff0_thd2~0 := #t~nondet23;assume #race~y$r_buff0_thd2~0 == #t~nondet23;havoc #t~short21;havoc #t~ite22;havoc #t~nondet23;#race~y$w_buff0_used~0 := 0;assume 0 == #race~y$w_buff0_used~0;#t~short24 := 0 != ~y$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short24;ParallelCodeBlock1: assume #t~short24;#race~y$r_buff0_thd2~0 := 0;assume 0 == #race~y$r_buff0_thd2~0;#t~short24 := 0 != ~y$r_buff0_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short24;BeginParallelComposition{ParallelCodeBlock0: assume #t~short26;ParallelCodeBlock1: assume !#t~short26;#race~y$w_buff1_used~0 := 0;assume 0 == #race~y$w_buff1_used~0;#t~short25 := 0 != ~y$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short25;ParallelCodeBlock1: assume #t~short25;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~short25 := 0 != ~y$r_buff1_thd2~0 % 256;}EndParallelComposition#t~short26 := #t~short25;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short26;#t~ite27 := 0;ParallelCodeBlock1: assume !#t~short26;#race~y$r_buff1_thd2~0 := 0;assume 0 == #race~y$r_buff1_thd2~0;#t~ite27 := ~y$r_buff1_thd2~0;}EndParallelComposition~y$r_buff1_thd2~0 := (if 0 == #t~ite27 % 256 then 0 else 1);havoc #t~nondet28;#race~y$r_buff1_thd2~0 := #t~nondet28;assume #race~y$r_buff1_thd2~0 == #t~nondet28;havoc #t~short24;havoc #t~short25;havoc #t~short26;havoc #t~ite27;havoc #t~nondet28;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-04-16 01:28:36,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...