/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-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 22:26:09,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 22:26:09,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 22:26:09,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 22:26:09,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 22:26:09,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 22:26:09,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 22:26:09,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 22:26:09,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 22:26:09,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 22:26:09,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 22:26:09,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 22:26:09,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 22:26:09,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 22:26:09,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 22:26:09,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 22:26:09,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 22:26:09,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 22:26:09,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 22:26:09,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 22:26:09,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 22:26:09,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 22:26:09,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 22:26:09,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 22:26:09,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 22:26:09,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 22:26:09,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 22:26:09,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 22:26:09,364 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-Random521.epf [2021-07-14 22:26:09,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 22:26:09,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 22:26:09,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 22:26:09,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 22:26:09,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 22:26:09,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 22:26:09,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 22:26:09,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 22:26:09,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 22:26:09,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 22:26:09,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 22:26:09,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 22:26:09,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 22:26:09,383 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 22:26:09,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 22:26:09,383 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 22:26:09,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 22:26:09,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 22:26:09,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 22:26:09,681 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 22:26:09,682 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 22:26:09,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2021-07-14 22:26:09,683 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2021-07-14 22:26:09,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 22:26:09,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 22:26:09,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 22:26:09,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 22:26:09,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 22:26:09,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 22:26:09,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 22:26:09,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 22:26:09,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 22:26:09,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/1) ... [2021-07-14 22:26:09,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 22:26:09,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 22:26:09,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 22:26:09,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 22:26:09,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (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 [2021-07-14 22:26:09,802 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 22:26:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 22:26:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 22:26:09,802 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 22:26:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 22:26:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 22:26:09,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 22:26:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 22:26:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 22:26:09,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 22:26:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 22:26:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 22:26:09,803 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 22:26:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 22:26:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 22:26:09,804 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 22:26:09,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 22:26:09,972 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-14 22:26:09,973 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:26:09 BoogieIcfgContainer [2021-07-14 22:26:09,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 22:26:09,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 22:26:09,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 22:26:09,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 22:26:09,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:26:09" (1/2) ... [2021-07-14 22:26:09,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f83051 and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 10:26:09, skipping insertion in model container [2021-07-14 22:26:09,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:26:09" (2/2) ... [2021-07-14 22:26:09,977 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2021-07-14 22:26:09,986 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 22:26:09,987 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 22:26:09,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 22:26:09,987 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 22:26:10,054 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 22:26:10,069 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-07-14 22:26:10,127 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 22:26:10,127 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 22:26:10,127 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 22:26:10,128 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 22:26:10,128 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 22:26:10,128 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 22:26:10,128 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 22:26:10,128 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 22:26:10,302 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 22:26:10,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 22:26:10,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1184047468, now seen corresponding path program 1 times [2021-07-14 22:26:10,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 22:26:10,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188939870] [2021-07-14 22:26:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 22:26:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 22:26:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 22:26:10,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 22:26:10,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188939870] [2021-07-14 22:26:10,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188939870] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 22:26:10,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 22:26:10,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 22:26:10,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349484603] [2021-07-14 22:26:10,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 22:26:10,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 22:26:10,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 22:26:10,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 22:26:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:26:10,478 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 22:26:10,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 22:26:10,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 22:26:10,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 22:26:10,571 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$CompatibleDfsOrder.lambda$0(PersistentSetReduction.java:142) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:356) 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:185) 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:509) 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) [2021-07-14 22:26:10,574 INFO L168 Benchmark]: Toolchain (without parser) took 867.09 ms. Allocated memory is still 209.7 MB. Free memory was 189.2 MB in the beginning and 168.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2021-07-14 22:26:10,574 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 209.7 MB. Free memory is still 190.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 22:26:10,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.79 ms. Allocated memory is still 209.7 MB. Free memory was 189.0 MB in the beginning and 187.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 22:26:10,575 INFO L168 Benchmark]: Boogie Preprocessor took 15.67 ms. Allocated memory is still 209.7 MB. Free memory was 187.6 MB in the beginning and 186.7 MB in the end (delta: 972.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 22:26:10,576 INFO L168 Benchmark]: RCFGBuilder took 226.66 ms. Allocated memory is still 209.7 MB. Free memory was 186.7 MB in the beginning and 176.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-07-14 22:26:10,576 INFO L168 Benchmark]: TraceAbstraction took 599.17 ms. Allocated memory is still 209.7 MB. Free memory was 175.7 MB in the beginning and 168.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2021-07-14 22:26:10,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 209.7 MB. Free memory is still 190.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.79 ms. Allocated memory is still 209.7 MB. Free memory was 189.0 MB in the beginning and 187.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.67 ms. Allocated memory is still 209.7 MB. Free memory was 187.6 MB in the beginning and 186.7 MB in the end (delta: 972.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 226.66 ms. Allocated memory is still 209.7 MB. Free memory was 186.7 MB in the beginning and 176.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 599.17 ms. Allocated memory is still 209.7 MB. Free memory was 175.7 MB in the beginning and 168.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompatibleDfsOrder.lambda$0(PersistentSetReduction.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...