/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/mix046.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-04aa6ae-m [2025-04-16 01:25:41,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-16 01:25:42,036 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 01:25:42,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-16 01:25:42,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-16 01:25:42,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-16 01:25:42,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-16 01:25:42,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-16 01:25:42,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-16 01:25:42,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-16 01:25:42,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-16 01:25:42,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-16 01:25:42,070 INFO L153 SettingsManager]: * Use SBE=true [2025-04-16 01:25:42,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-16 01:25:42,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-16 01:25:42,072 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-16 01:25:42,072 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-16 01:25:42,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:25:42,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 01:25:42,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:25:42,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-16 01:25:42,074 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-16 01:25:42,074 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 01:25:42,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-16 01:25:42,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-16 01:25:42,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-16 01:25:42,303 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-16 01:25:42,303 INFO L274 PluginConnector]: CDTParser initialized [2025-04-16 01:25:42,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix046.oepc.i [2025-04-16 01:25:43,582 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0f493a/3abeb78977ab4da48563e217c5ecbf1b/FLAG188805670 [2025-04-16 01:25:43,859 INFO L389 CDTParser]: Found 1 translation units. [2025-04-16 01:25:43,860 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix046.oepc.i [2025-04-16 01:25:43,878 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0f493a/3abeb78977ab4da48563e217c5ecbf1b/FLAG188805670 [2025-04-16 01:25:44,632 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0f493a/3abeb78977ab4da48563e217c5ecbf1b [2025-04-16 01:25:44,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-16 01:25:44,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-16 01:25:44,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-16 01:25:44,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-16 01:25:44,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-16 01:25:44,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:25:44" (1/1) ... [2025-04-16 01:25:44,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534de001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:44, skipping insertion in model container [2025-04-16 01:25:44,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:25:44" (1/1) ... [2025-04-16 01:25:44,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-16 01:25:44,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 01:25:44,969 INFO L200 MainTranslator]: Completed pre-run [2025-04-16 01:25:45,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 01:25:45,076 INFO L204 MainTranslator]: Completed translation [2025-04-16 01:25:45,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45 WrapperNode [2025-04-16 01:25:45,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-16 01:25:45,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-16 01:25:45,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-16 01:25:45,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-16 01:25:45,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,135 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 506 [2025-04-16 01:25:45,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-16 01:25:45,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-16 01:25:45,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-16 01:25:45,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-16 01:25:45,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-16 01:25:45,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-16 01:25:45,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-16 01:25:45,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-16 01:25:45,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:25:45" (1/1) ... [2025-04-16 01:25:45,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 01:25:45,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 01:25:45,218 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 01:25:45,223 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 01:25:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-16 01:25:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-16 01:25:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-16 01:25:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-16 01:25:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-16 01:25:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-16 01:25:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-16 01:25:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-16 01:25:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-04-16 01:25:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-04-16 01:25:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-16 01:25:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-16 01:25:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-16 01:25:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-16 01:25:45,243 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 01:25:45,405 INFO L234 CfgBuilder]: Building ICFG [2025-04-16 01:25:45,406 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-16 01:25:46,590 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-16 01:25:46,591 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-16 01:25:46,591 INFO L294 CfgBuilder]: Performing block encoding [2025-04-16 01:25:48,634 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~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume #t~short158;#race~b$w_buff0~0 := 0;assume 0 == #race~b$w_buff0~0;#t~ite161 := ~b$w_buff0~0;ParallelCodeBlock1: #race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume !#t~short158;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short159 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short159;ParallelCodeBlock1: assume #t~short159;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short159 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short159;#race~b$w_buff1~0 := 0;assume 0 == #race~b$w_buff1~0;#t~ite160 := ~b$w_buff1~0;ParallelCodeBlock1: assume !#t~short159;#race~b~0 := 0;assume 0 == #race~b~0;#t~ite160 := ~b~0;}EndParallelComposition#t~ite161 := #t~ite160;}EndParallelComposition~b~0 := #t~ite161;havoc #t~nondet162;#race~b~0 := #t~nondet162;assume #race~b~0 == #t~nondet162;havoc #t~short158;havoc #t~ite161;havoc #t~short159;havoc #t~ite160;havoc #t~nondet162;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short163 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short163;ParallelCodeBlock1: assume #t~short163;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short163 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short163;#t~ite164 := 0;ParallelCodeBlock1: assume !#t~short163;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~ite164 := ~b$w_buff0_used~0;}EndParallelComposition~b$w_buff0_used~0 := (if 0 == #t~ite164 % 256 then 0 else 1);havoc #t~nondet165;#race~b$w_buff0_used~0 := #t~nondet165;assume #race~b$w_buff0_used~0 == #t~nondet165;havoc #t~short163;havoc #t~ite164;havoc #t~nondet165;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short166 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short166;ParallelCodeBlock1: assume #t~short166;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short166 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short166;BeginParallelComposition{ParallelCodeBlock0: assume #t~short168;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short167 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short167;ParallelCodeBlock1: assume #t~short167;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short167 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short167;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short168;#t~ite169 := 0;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~ite169 := ~b$w_buff1_used~0;}EndParallelComposition~b$w_buff1_used~0 := (if 0 == #t~ite169 % 256 then 0 else 1);havoc #t~nondet170;#race~b$w_buff1_used~0 := #t~nondet170;assume #race~b$w_buff1_used~0 == #t~nondet170;havoc #t~short166;havoc #t~short167;havoc #t~short168;havoc #t~ite169;havoc #t~nondet170;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short171 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short171;ParallelCodeBlock1: assume #t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short171 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short171;#t~ite172 := 0;ParallelCodeBlock1: assume !#t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~ite172 := ~b$r_buff0_thd4~0;}EndParallelComposition~b$r_buff0_thd4~0 := (if 0 == #t~ite172 % 256 then 0 else 1);havoc #t~nondet173;#race~b$r_buff0_thd4~0 := #t~nondet173;assume #race~b$r_buff0_thd4~0 == #t~nondet173;havoc #t~short171;havoc #t~ite172;havoc #t~nondet173;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short174 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short174;ParallelCodeBlock1: assume #t~short174;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short174 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short174;BeginParallelComposition{ParallelCodeBlock0: assume #t~short176;ParallelCodeBlock1: assume !#t~short176;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short175 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short175;ParallelCodeBlock1: assume #t~short175;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short175 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short175;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short176;#t~ite177 := 0;ParallelCodeBlock1: assume !#t~short176;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~ite177 := ~b$r_buff1_thd4~0;}EndParallelComposition~b$r_buff1_thd4~0 := (if 0 == #t~ite177 % 256 then 0 else 1);havoc #t~nondet178;#race~b$r_buff1_thd4~0 := #t~nondet178;assume #race~b$r_buff1_thd4~0 == #t~nondet178;havoc #t~short174;havoc #t~short175;havoc #t~short176;havoc #t~ite177;havoc #t~nondet178;). 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-16 01:25:48,639 INFO L158 Benchmark]: Toolchain (without parser) took 4003.42ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 99.0MB in the beginning and 158.0MB in the end (delta: -59.0MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB. [2025-04-16 01:25:48,639 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-16 01:25:48,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.67ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 68.2MB in the end (delta: 30.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-16 01:25:48,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.02ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 64.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 01:25:48,642 INFO L158 Benchmark]: Boogie Preprocessor took 48.43ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 59.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 01:25:48,643 INFO L158 Benchmark]: RCFGBuilder took 3453.47ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 59.9MB in the beginning and 158.0MB in the end (delta: -98.1MB). Peak memory consumption was 178.2MB. Max. memory is 8.0GB. [2025-04-16 01:25:48,644 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 440.67ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 68.2MB in the end (delta: 30.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.02ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 64.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.43ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 59.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3453.47ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 59.9MB in the beginning and 158.0MB in the end (delta: -98.1MB). Peak memory consumption was 178.2MB. 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~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume #t~short158;#race~b$w_buff0~0 := 0;assume 0 == #race~b$w_buff0~0;#t~ite161 := ~b$w_buff0~0;ParallelCodeBlock1: #race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume !#t~short158;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short159 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short159;ParallelCodeBlock1: assume #t~short159;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short159 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short159;#race~b$w_buff1~0 := 0;assume 0 == #race~b$w_buff1~0;#t~ite160 := ~b$w_buff1~0;ParallelCodeBlock1: assume !#t~short159;#race~b~0 := 0;assume 0 == #race~b~0;#t~ite160 := ~b~0;}EndParallelComposition#t~ite161 := #t~ite160;}EndParallelComposition~b~0 := #t~ite161;havoc #t~nondet162;#race~b~0 := #t~nondet162;assume #race~b~0 == #t~nondet162;havoc #t~short158;havoc #t~ite161;havoc #t~short159;havoc #t~ite160;havoc #t~nondet162;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short163 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short163;ParallelCodeBlock1: assume #t~short163;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short163 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short163;#t~ite164 := 0;ParallelCodeBlock1: assume !#t~short163;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~ite164 := ~b$w_buff0_used~0;}EndParallelComposition~b$w_buff0_used~0 := (if 0 == #t~ite164 % 256 then 0 else 1);havoc #t~nondet165;#race~b$w_buff0_used~0 := #t~nondet165;assume #race~b$w_buff0_used~0 == #t~nondet165;havoc #t~short163;havoc #t~ite164;havoc #t~nondet165;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short166 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short166;ParallelCodeBlock1: assume #t~short166;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short166 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short166;BeginParallelComposition{ParallelCodeBlock0: assume #t~short168;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short167 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short167;ParallelCodeBlock1: assume #t~short167;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short167 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short167;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short168;#t~ite169 := 0;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~ite169 := ~b$w_buff1_used~0;}EndParallelComposition~b$w_buff1_used~0 := (if 0 == #t~ite169 % 256 then 0 else 1);havoc #t~nondet170;#race~b$w_buff1_used~0 := #t~nondet170;assume #race~b$w_buff1_used~0 == #t~nondet170;havoc #t~short166;havoc #t~short167;havoc #t~short168;havoc #t~ite169;havoc #t~nondet170;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short171 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short171;ParallelCodeBlock1: assume #t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short171 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short171;#t~ite172 := 0;ParallelCodeBlock1: assume !#t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~ite172 := ~b$r_buff0_thd4~0;}EndParallelComposition~b$r_buff0_thd4~0 := (if 0 == #t~ite172 % 256 then 0 else 1);havoc #t~nondet173;#race~b$r_buff0_thd4~0 := #t~nondet173;assume #race~b$r_buff0_thd4~0 == #t~nondet173;havoc #t~short171;havoc #t~ite172;havoc #t~nondet173;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short174 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short174;ParallelCodeBlock1: assume #t~short174;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short174 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short174;BeginParallelComposition{ParallelCodeBlock0: assume #t~short176;ParallelCodeBlock1: assume !#t~short176;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short175 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short175;ParallelCodeBlock1: assume #t~short175;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short175 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short175;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short176;#t~ite177 := 0;ParallelCodeBlock1: assume !#t~short176;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~ite177 := ~b$r_buff1_thd4~0;}EndParallelComposition~b$r_buff1_thd4~0 := (if 0 == #t~ite177 % 256 then 0 else 1);havoc #t~nondet178;#race~b$r_buff1_thd4~0 := #t~nondet178;assume #race~b$r_buff1_thd4~0 == #t~nondet178;havoc #t~short174;havoc #t~short175;havoc #t~short176;havoc #t~ite177;havoc #t~nondet178;). 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~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume #t~short158;#race~b$w_buff0~0 := 0;assume 0 == #race~b$w_buff0~0;#t~ite161 := ~b$w_buff0~0;ParallelCodeBlock1: #race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short158 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short158;ParallelCodeBlock1: assume #t~short158;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short158 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionassume !#t~short158;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short159 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short159;ParallelCodeBlock1: assume #t~short159;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short159 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short159;#race~b$w_buff1~0 := 0;assume 0 == #race~b$w_buff1~0;#t~ite160 := ~b$w_buff1~0;ParallelCodeBlock1: assume !#t~short159;#race~b~0 := 0;assume 0 == #race~b~0;#t~ite160 := ~b~0;}EndParallelComposition#t~ite161 := #t~ite160;}EndParallelComposition~b~0 := #t~ite161;havoc #t~nondet162;#race~b~0 := #t~nondet162;assume #race~b~0 == #t~nondet162;havoc #t~short158;havoc #t~ite161;havoc #t~short159;havoc #t~ite160;havoc #t~nondet162;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short163 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short163;ParallelCodeBlock1: assume #t~short163;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short163 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short163;#t~ite164 := 0;ParallelCodeBlock1: assume !#t~short163;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~ite164 := ~b$w_buff0_used~0;}EndParallelComposition~b$w_buff0_used~0 := (if 0 == #t~ite164 % 256 then 0 else 1);havoc #t~nondet165;#race~b$w_buff0_used~0 := #t~nondet165;assume #race~b$w_buff0_used~0 == #t~nondet165;havoc #t~short163;havoc #t~ite164;havoc #t~nondet165;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short166 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short166;ParallelCodeBlock1: assume #t~short166;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short166 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short166;BeginParallelComposition{ParallelCodeBlock0: assume #t~short168;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short167 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short167;ParallelCodeBlock1: assume #t~short167;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short167 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short168 := #t~short167;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short168;#t~ite169 := 0;ParallelCodeBlock1: assume !#t~short168;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~ite169 := ~b$w_buff1_used~0;}EndParallelComposition~b$w_buff1_used~0 := (if 0 == #t~ite169 % 256 then 0 else 1);havoc #t~nondet170;#race~b$w_buff1_used~0 := #t~nondet170;assume #race~b$w_buff1_used~0 == #t~nondet170;havoc #t~short166;havoc #t~short167;havoc #t~short168;havoc #t~ite169;havoc #t~nondet170;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short171 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short171;ParallelCodeBlock1: assume #t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short171 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short171;#t~ite172 := 0;ParallelCodeBlock1: assume !#t~short171;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~ite172 := ~b$r_buff0_thd4~0;}EndParallelComposition~b$r_buff0_thd4~0 := (if 0 == #t~ite172 % 256 then 0 else 1);havoc #t~nondet173;#race~b$r_buff0_thd4~0 := #t~nondet173;assume #race~b$r_buff0_thd4~0 == #t~nondet173;havoc #t~short171;havoc #t~ite172;havoc #t~nondet173;#race~b$w_buff0_used~0 := 0;assume 0 == #race~b$w_buff0_used~0;#t~short174 := 0 != ~b$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short174;ParallelCodeBlock1: assume #t~short174;#race~b$r_buff0_thd4~0 := 0;assume 0 == #race~b$r_buff0_thd4~0;#t~short174 := 0 != ~b$r_buff0_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short174;BeginParallelComposition{ParallelCodeBlock0: assume #t~short176;ParallelCodeBlock1: assume !#t~short176;#race~b$w_buff1_used~0 := 0;assume 0 == #race~b$w_buff1_used~0;#t~short175 := 0 != ~b$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short175;ParallelCodeBlock1: assume #t~short175;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~short175 := 0 != ~b$r_buff1_thd4~0 % 256;}EndParallelComposition#t~short176 := #t~short175;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short176;#t~ite177 := 0;ParallelCodeBlock1: assume !#t~short176;#race~b$r_buff1_thd4~0 := 0;assume 0 == #race~b$r_buff1_thd4~0;#t~ite177 := ~b$r_buff1_thd4~0;}EndParallelComposition~b$r_buff1_thd4~0 := (if 0 == #t~ite177 % 256 then 0 else 1);havoc #t~nondet178;#race~b$r_buff1_thd4~0 := #t~nondet178;assume #race~b$r_buff1_thd4~0 == #t~nondet178;havoc #t~short174;havoc #t~short175;havoc #t~short176;havoc #t~ite177;havoc #t~nondet178;). 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 01:25:48,660 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...