/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --preprocessor.replace.while.statements.and.if-then-else.statements false --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/safe021_power.opt_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-04aa6ae-m [2025-04-16 04:58:42,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-16 04:58:42,620 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 04:58:42,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-16 04:58:42,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-16 04:58:42,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-16 04:58:42,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-16 04:58:42,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-16 04:58:42,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Use SBE=true [2025-04-16 04:58:42,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-16 04:58:42,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-16 04:58:42,646 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 04:58:42,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 04:58:42,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 04:58:42,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-16 04:58:42,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false 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 04:58:42,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-16 04:58:42,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-16 04:58:42,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-16 04:58:42,846 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-16 04:58:42,846 INFO L274 PluginConnector]: CDTParser initialized [2025-04-16 04:58:42,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2025-04-16 04:58:44,136 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcd7a0097/38f5dbf767bb42c6a6d99d7dd6a50aef/FLAG0802b2a84 [2025-04-16 04:58:44,359 INFO L389 CDTParser]: Found 1 translation units. [2025-04-16 04:58:44,360 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2025-04-16 04:58:44,374 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcd7a0097/38f5dbf767bb42c6a6d99d7dd6a50aef/FLAG0802b2a84 [2025-04-16 04:58:45,136 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcd7a0097/38f5dbf767bb42c6a6d99d7dd6a50aef [2025-04-16 04:58:45,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-16 04:58:45,139 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-16 04:58:45,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-16 04:58:45,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-16 04:58:45,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-16 04:58:45,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742435cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45, skipping insertion in model container [2025-04-16 04:58:45,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-16 04:58:45,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 04:58:45,519 INFO L200 MainTranslator]: Completed pre-run [2025-04-16 04:58:45,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 04:58:45,644 INFO L204 MainTranslator]: Completed translation [2025-04-16 04:58:45,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45 WrapperNode [2025-04-16 04:58:45,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-16 04:58:45,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-16 04:58:45,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-16 04:58:45,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-16 04:58:45,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,706 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 922 [2025-04-16 04:58:45,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-16 04:58:45,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-16 04:58:45,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-16 04:58:45,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-16 04:58:45,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-16 04:58:45,759 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-16 04:58:45,759 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-16 04:58:45,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-16 04:58:45,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 04:58:45" (1/1) ... [2025-04-16 04:58:45,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 04:58:45,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 04:58:45,784 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 04:58:45,789 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 04:58:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-16 04:58:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-16 04:58:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-16 04:58:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-16 04:58:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-16 04:58:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-16 04:58:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-16 04:58:45,805 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-16 04:58:45,937 INFO L256 CfgBuilder]: Building ICFG [2025-04-16 04:58:45,938 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-16 04:58:46,897 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-16 04:58:46,898 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-16 04:58:46,898 INFO L318 CfgBuilder]: Performing block encoding [2025-04-16 04:58:48,566 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume #t~short5;#race~x$w_buff0~0 := 0;assume 0 == #race~x$w_buff0~0;#t~ite8 := ~x$w_buff0~0;ParallelCodeBlock1: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume !#t~short5;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short6 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short6;ParallelCodeBlock1: assume #t~short6;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short6 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short6;#race~x$w_buff1~0 := 0;assume 0 == #race~x$w_buff1~0;#t~ite7 := ~x$w_buff1~0;ParallelCodeBlock1: assume !#t~short6;#race~x~0 := 0;assume 0 == #race~x~0;#t~ite7 := ~x~0;}EndParallelComposition#t~ite8 := #t~ite7;}EndParallelComposition~x~0 := #t~ite8;havoc #t~nondet9;#race~x~0 := #t~nondet9;assume #race~x~0 == #t~nondet9;havoc #t~short5;havoc #t~ite8;havoc #t~short6;havoc #t~ite7;havoc #t~nondet9;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short10 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short10;ParallelCodeBlock1: assume #t~short10;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short10 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short10;#t~ite11 := 0;ParallelCodeBlock1: assume !#t~short10;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~ite11 := ~x$w_buff0_used~0;}EndParallelComposition~x$w_buff0_used~0 := (if 0 == #t~ite11 % 256 then 0 else 1);havoc #t~nondet12;#race~x$w_buff0_used~0 := #t~nondet12;assume #race~x$w_buff0_used~0 == #t~nondet12;havoc #t~short10;havoc #t~ite11;havoc #t~nondet12;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short13 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short13 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short13;BeginParallelComposition{ParallelCodeBlock0: assume #t~short15;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short14 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short14;ParallelCodeBlock1: assume #t~short14;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short14 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short14;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short15;#t~ite16 := 0;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~ite16 := ~x$w_buff1_used~0;}EndParallelComposition~x$w_buff1_used~0 := (if 0 == #t~ite16 % 256 then 0 else 1);havoc #t~nondet17;#race~x$w_buff1_used~0 := #t~nondet17;assume #race~x$w_buff1_used~0 == #t~nondet17;havoc #t~short13;havoc #t~short14;havoc #t~short15;havoc #t~ite16;havoc #t~nondet17;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short18 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short18;ParallelCodeBlock1: assume #t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short18 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~ite19 := ~x$r_buff0_thd1~0;}EndParallelComposition~x$r_buff0_thd1~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~x$r_buff0_thd1~0 := #t~nondet20;assume #race~x$r_buff0_thd1~0 == #t~nondet20;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short21 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short21 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short21;BeginParallelComposition{ParallelCodeBlock0: assume #t~short23;ParallelCodeBlock1: assume !#t~short23;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short22 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short22;ParallelCodeBlock1: assume #t~short22;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short22 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short22;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short23;#t~ite24 := 0;ParallelCodeBlock1: assume !#t~short23;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~ite24 := ~x$r_buff1_thd1~0;}EndParallelComposition~x$r_buff1_thd1~0 := (if 0 == #t~ite24 % 256 then 0 else 1);havoc #t~nondet25;#race~x$r_buff1_thd1~0 := #t~nondet25;assume #race~x$r_buff1_thd1~0 == #t~nondet25;havoc #t~short21;havoc #t~short22;havoc #t~short23;havoc #t~ite24;havoc #t~nondet25;). 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.icfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.IcfgBuilderObserver.process(IcfgBuilderObserver.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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-16 04:58:48,572 INFO L158 Benchmark]: Toolchain (without parser) took 3432.63ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 97.1MB in the beginning and 191.9MB in the end (delta: -94.8MB). Peak memory consumption was 233.3MB. Max. memory is 8.0GB. [2025-04-16 04:58:48,573 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-16 04:58:48,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.40ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 67.7MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-16 04:58:48,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.28ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 62.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 04:58:48,573 INFO L158 Benchmark]: Boogie Preprocessor took 52.08ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 59.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-16 04:58:48,573 INFO L158 Benchmark]: IcfgBuilder took 2811.56ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 59.3MB in the beginning and 191.9MB in the end (delta: -132.6MB). Peak memory consumption was 195.5MB. Max. memory is 8.0GB. [2025-04-16 04:58:48,575 INFO L338 ainManager$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 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 505.40ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 67.7MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.28ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 62.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.08ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 59.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * IcfgBuilder took 2811.56ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 59.3MB in the beginning and 191.9MB in the end (delta: -132.6MB). Peak memory consumption was 195.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume #t~short5;#race~x$w_buff0~0 := 0;assume 0 == #race~x$w_buff0~0;#t~ite8 := ~x$w_buff0~0;ParallelCodeBlock1: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume !#t~short5;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short6 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short6;ParallelCodeBlock1: assume #t~short6;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short6 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short6;#race~x$w_buff1~0 := 0;assume 0 == #race~x$w_buff1~0;#t~ite7 := ~x$w_buff1~0;ParallelCodeBlock1: assume !#t~short6;#race~x~0 := 0;assume 0 == #race~x~0;#t~ite7 := ~x~0;}EndParallelComposition#t~ite8 := #t~ite7;}EndParallelComposition~x~0 := #t~ite8;havoc #t~nondet9;#race~x~0 := #t~nondet9;assume #race~x~0 == #t~nondet9;havoc #t~short5;havoc #t~ite8;havoc #t~short6;havoc #t~ite7;havoc #t~nondet9;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short10 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short10;ParallelCodeBlock1: assume #t~short10;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short10 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short10;#t~ite11 := 0;ParallelCodeBlock1: assume !#t~short10;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~ite11 := ~x$w_buff0_used~0;}EndParallelComposition~x$w_buff0_used~0 := (if 0 == #t~ite11 % 256 then 0 else 1);havoc #t~nondet12;#race~x$w_buff0_used~0 := #t~nondet12;assume #race~x$w_buff0_used~0 == #t~nondet12;havoc #t~short10;havoc #t~ite11;havoc #t~nondet12;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short13 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short13 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short13;BeginParallelComposition{ParallelCodeBlock0: assume #t~short15;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short14 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short14;ParallelCodeBlock1: assume #t~short14;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short14 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short14;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short15;#t~ite16 := 0;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~ite16 := ~x$w_buff1_used~0;}EndParallelComposition~x$w_buff1_used~0 := (if 0 == #t~ite16 % 256 then 0 else 1);havoc #t~nondet17;#race~x$w_buff1_used~0 := #t~nondet17;assume #race~x$w_buff1_used~0 == #t~nondet17;havoc #t~short13;havoc #t~short14;havoc #t~short15;havoc #t~ite16;havoc #t~nondet17;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short18 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short18;ParallelCodeBlock1: assume #t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short18 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~ite19 := ~x$r_buff0_thd1~0;}EndParallelComposition~x$r_buff0_thd1~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~x$r_buff0_thd1~0 := #t~nondet20;assume #race~x$r_buff0_thd1~0 == #t~nondet20;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short21 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short21 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short21;BeginParallelComposition{ParallelCodeBlock0: assume #t~short23;ParallelCodeBlock1: assume !#t~short23;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short22 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short22;ParallelCodeBlock1: assume #t~short22;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short22 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short22;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short23;#t~ite24 := 0;ParallelCodeBlock1: assume !#t~short23;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~ite24 := ~x$r_buff1_thd1~0;}EndParallelComposition~x$r_buff1_thd1~0 := (if 0 == #t~ite24 % 256 then 0 else 1);havoc #t~nondet25;#race~x$r_buff1_thd1~0 := #t~nondet25;assume #race~x$r_buff1_thd1~0 == #t~nondet25;havoc #t~short21;havoc #t~short22;havoc #t~short23;havoc #t~ite24;havoc #t~nondet25;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume #t~short5;#race~x$w_buff0~0 := 0;assume 0 == #race~x$w_buff0~0;#t~ite8 := ~x$w_buff0~0;ParallelCodeBlock1: #race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short5 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short5;ParallelCodeBlock1: assume #t~short5;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short5 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionassume !#t~short5;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short6 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short6;ParallelCodeBlock1: assume #t~short6;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short6 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short6;#race~x$w_buff1~0 := 0;assume 0 == #race~x$w_buff1~0;#t~ite7 := ~x$w_buff1~0;ParallelCodeBlock1: assume !#t~short6;#race~x~0 := 0;assume 0 == #race~x~0;#t~ite7 := ~x~0;}EndParallelComposition#t~ite8 := #t~ite7;}EndParallelComposition~x~0 := #t~ite8;havoc #t~nondet9;#race~x~0 := #t~nondet9;assume #race~x~0 == #t~nondet9;havoc #t~short5;havoc #t~ite8;havoc #t~short6;havoc #t~ite7;havoc #t~nondet9;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short10 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short10;ParallelCodeBlock1: assume #t~short10;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short10 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short10;#t~ite11 := 0;ParallelCodeBlock1: assume !#t~short10;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~ite11 := ~x$w_buff0_used~0;}EndParallelComposition~x$w_buff0_used~0 := (if 0 == #t~ite11 % 256 then 0 else 1);havoc #t~nondet12;#race~x$w_buff0_used~0 := #t~nondet12;assume #race~x$w_buff0_used~0 == #t~nondet12;havoc #t~short10;havoc #t~ite11;havoc #t~nondet12;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short13 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short13;ParallelCodeBlock1: assume #t~short13;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short13 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short13;BeginParallelComposition{ParallelCodeBlock0: assume #t~short15;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short14 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short14;ParallelCodeBlock1: assume #t~short14;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short14 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short15 := #t~short14;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short15;#t~ite16 := 0;ParallelCodeBlock1: assume !#t~short15;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~ite16 := ~x$w_buff1_used~0;}EndParallelComposition~x$w_buff1_used~0 := (if 0 == #t~ite16 % 256 then 0 else 1);havoc #t~nondet17;#race~x$w_buff1_used~0 := #t~nondet17;assume #race~x$w_buff1_used~0 == #t~nondet17;havoc #t~short13;havoc #t~short14;havoc #t~short15;havoc #t~ite16;havoc #t~nondet17;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short18 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short18;ParallelCodeBlock1: assume #t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short18 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short18;#t~ite19 := 0;ParallelCodeBlock1: assume !#t~short18;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~ite19 := ~x$r_buff0_thd1~0;}EndParallelComposition~x$r_buff0_thd1~0 := (if 0 == #t~ite19 % 256 then 0 else 1);havoc #t~nondet20;#race~x$r_buff0_thd1~0 := #t~nondet20;assume #race~x$r_buff0_thd1~0 == #t~nondet20;havoc #t~short18;havoc #t~ite19;havoc #t~nondet20;#race~x$w_buff0_used~0 := 0;assume 0 == #race~x$w_buff0_used~0;#t~short21 := 0 != ~x$w_buff0_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short21;ParallelCodeBlock1: assume #t~short21;#race~x$r_buff0_thd1~0 := 0;assume 0 == #race~x$r_buff0_thd1~0;#t~short21 := 0 != ~x$r_buff0_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short21;BeginParallelComposition{ParallelCodeBlock0: assume #t~short23;ParallelCodeBlock1: assume !#t~short23;#race~x$w_buff1_used~0 := 0;assume 0 == #race~x$w_buff1_used~0;#t~short22 := 0 != ~x$w_buff1_used~0 % 256;BeginParallelComposition{ParallelCodeBlock0: assume !#t~short22;ParallelCodeBlock1: assume #t~short22;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~short22 := 0 != ~x$r_buff1_thd1~0 % 256;}EndParallelComposition#t~short23 := #t~short22;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume #t~short23;#t~ite24 := 0;ParallelCodeBlock1: assume !#t~short23;#race~x$r_buff1_thd1~0 := 0;assume 0 == #race~x$r_buff1_thd1~0;#t~ite24 := ~x$r_buff1_thd1~0;}EndParallelComposition~x$r_buff1_thd1~0 := (if 0 == #t~ite24 % 256 then 0 else 1);havoc #t~nondet25;#race~x$r_buff1_thd1~0 := #t~nondet25;assume #race~x$r_buff1_thd1~0 == #t~nondet25;havoc #t~short21;havoc #t~short22;havoc #t~short23;havoc #t~ite24;havoc #t~nondet25;). 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 04:58:48,591 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...