/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 13:03:33,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 13:03:33,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 13:03:33,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-10 13:03:33,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-10 13:03:33,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-10 13:03:33,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-10 13:03:33,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-10 13:03:33,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-10 13:03:33,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-10 13:03:33,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-10 13:03:33,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-10 13:03:33,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 13:03:33,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 13:03:33,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 13:03:33,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 13:03:33,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 13:03:33,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 13:03:33,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 13:03:33,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 13:03:33,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 13:03:33,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 13:03:33,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 13:03:33,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 13:03:33,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-10 13:03:33,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-10 13:03:33,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-10 13:03:33,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-10 13:03:33,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-10 13:03:33,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-10 13:03:33,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-10 13:03:33,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-10 13:03:33,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-10 13:03:33,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-10 13:03:33,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-10 13:03:33,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-10 13:03:33,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-10 13:03:33,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-10 13:03:33,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 13:03:33,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 13:03:33,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 13:03:33,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-10 13:03:33,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 13:03:33,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 13:03:33,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 13:03:33,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 13:03:33,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 13:03:33,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 13:03:33,328 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 13:03:33,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 13:03:33,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 13:03:33,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 13:03:33,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 13:03:33,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 13:03:33,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 13:03:33,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 13:03:33,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 13:03:33,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 13:03:33,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 13:03:33,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 13:03:33,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 13:03:33,332 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 13:03:33,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 13:03:33,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 13:03:33,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 13:03:33,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 13:03:33,628 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 13:03:33,629 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 13:03:33,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl [2021-07-10 13:03:33,630 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-2.wvr.bpl' [2021-07-10 13:03:33,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 13:03:33,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 13:03:33,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 13:03:33,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 13:03:33,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 13:03:33,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 13:03:33,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 13:03:33,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 13:03:33,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 13:03:33,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... [2021-07-10 13:03:33,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 13:03:33,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 13:03:33,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 13:03:33,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 13:03:33,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 13:03:33,773 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 13:03:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 13:03:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 13:03:33,773 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 13:03:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 13:03:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 13:03:33,773 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 13:03:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 13:03:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 13:03:33,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 13:03:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 13:03:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 13:03:33,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-10 13:03:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-10 13:03:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-10 13:03:33,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-07-10 13:03:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-07-10 13:03:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-07-10 13:03:33,774 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-07-10 13:03:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-07-10 13:03:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-07-10 13:03:33,775 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 13:03:33,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 13:03:33,930 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-10 13:03:33,930 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-10 13:03:33,931 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-07-10 13:03:33,931 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2021-07-10 13:03:33,931 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2021-07-10 13:03:33,932 INFO L202 PluginConnector]: Adding new model parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:03:33 BoogieIcfgContainer [2021-07-10 13:03:33,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 13:03:33,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 13:03:33,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 13:03:33,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 13:03:33,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:03:33" (1/2) ... [2021-07-10 13:03:33,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49de2272 and model type parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 01:03:33, skipping insertion in model container [2021-07-10 13:03:33,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:03:33" (2/2) ... [2021-07-10 13:03:33,937 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-2.wvr.bpl [2021-07-10 13:03:33,940 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 13:03:33,940 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 13:03:33,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 13:03:33,941 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 13:03:34,016 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-07-10 13:03:34,031 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 13:03:34,151 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 13:03:34,151 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 13:03:34,151 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 13:03:34,151 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 13:03:34,151 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 13:03:34,151 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 13:03:34,151 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 13:03:34,151 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread4Thread1of1ForFork4======== [2021-07-10 13:03:34,291 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Guarantee of compatibility failed at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:137) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:360) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1515) at java.base/java.util.ArrayList.sort(ArrayList.java:1750) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:147) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:422) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-10 13:03:34,299 INFO L168 Benchmark]: Toolchain (without parser) took 635.94 ms. Allocated memory is still 183.5 MB. Free memory was 163.3 MB in the beginning and 155.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 8.0 GB. [2021-07-10 13:03:34,300 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 183.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 13:03:34,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.76 ms. Allocated memory is still 183.5 MB. Free memory was 163.2 MB in the beginning and 161.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-10 13:03:34,301 INFO L168 Benchmark]: Boogie Preprocessor took 24.85 ms. Allocated memory is still 183.5 MB. Free memory was 161.7 MB in the beginning and 160.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 13:03:34,302 INFO L168 Benchmark]: RCFGBuilder took 220.32 ms. Allocated memory is still 183.5 MB. Free memory was 160.6 MB in the beginning and 143.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-07-10 13:03:34,302 INFO L168 Benchmark]: TraceAbstraction took 364.97 ms. Allocated memory is still 183.5 MB. Free memory was 143.3 MB in the beginning and 155.7 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 13:03:34,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 183.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.76 ms. Allocated memory is still 183.5 MB. Free memory was 163.2 MB in the beginning and 161.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.85 ms. Allocated memory is still 183.5 MB. Free memory was 161.7 MB in the beginning and 160.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 220.32 ms. Allocated memory is still 183.5 MB. Free memory was 160.6 MB in the beginning and 143.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 364.97 ms. Allocated memory is still 183.5 MB. Free memory was 143.3 MB in the beginning and 155.7 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompliantDfsOrder.lambda$0(PersistentSetReduction.java:137) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...