/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 17:11:59,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 17:11:59,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 17:11:59,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 17:11:59,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 17:11:59,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 17:11:59,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 17:11:59,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 17:11:59,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 17:11:59,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 17:11:59,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 17:11:59,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 17:11:59,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 17:11:59,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 17:11:59,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 17:11:59,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 17:11:59,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 17:11:59,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 17:11:59,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 17:11:59,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 17:11:59,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 17:11:59,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 17:11:59,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 17:11:59,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 17:11:59,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 17:11:59,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 17:11:59,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 17:11:59,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 17:11:59,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 17:11:59,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 17:11:59,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 17:11:59,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 17:11:59,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 17:11:59,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 17:11:59,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 17:11:59,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 17:11:59,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 17:11:59,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 17:11:59,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 17:11:59,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 17:11:59,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 17:11:59,377 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-FA-NoLbe-Delay.epf [2021-06-16 17:11:59,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 17:11:59,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 17:11:59,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 17:11:59,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 17:11:59,397 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 17:11:59,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 17:11:59,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 17:11:59,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 17:11:59,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 17:11:59,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 17:11:59,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 17:11:59,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 17:11:59,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 17:11:59,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 17:11:59,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 17:11:59,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 17:11:59,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 17:11:59,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 17:11:59,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 17:11:59,410 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 17:11:59,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 17:11:59,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 17:11:59,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 17:11:59,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 17:11:59,673 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 17:11:59,675 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 17:11:59,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl [2021-06-16 17:11:59,676 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bluetooth.wvr.bpl' [2021-06-16 17:11:59,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 17:11:59,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 17:11:59,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 17:11:59,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 17:11:59,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 17:11:59,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 17:11:59,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 17:11:59,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 17:11:59,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 17:11:59,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/1) ... [2021-06-16 17:11:59,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 17:11:59,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 17:11:59,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 17:11:59,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 17:11:59,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (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 [2021-06-16 17:11:59,787 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 17:11:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 17:11:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 17:11:59,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 17:11:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 17:11:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 17:11:59,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 17:11:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 17:11:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 17:11:59,790 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 17:11:59,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 17:11:59,919 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 17:11:59,921 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 05:11:59 BoogieIcfgContainer [2021-06-16 17:11:59,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 17:11:59,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 17:11:59,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 17:11:59,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 17:11:59,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:11:59" (1/2) ... [2021-06-16 17:11:59,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e869e and model type bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 05:11:59, skipping insertion in model container [2021-06-16 17:11:59,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 05:11:59" (2/2) ... [2021-06-16 17:11:59,926 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.bpl [2021-06-16 17:11:59,930 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 17:11:59,930 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 17:11:59,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 17:11:59,930 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 17:11:59,966 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-16 17:11:59,980 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 17:11:59,993 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 17:11:59,993 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 17:11:59,994 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 17:11:59,994 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 17:11:59,994 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 17:11:59,994 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 17:11:59,994 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 17:11:59,994 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 17:12:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 60 states have (on average 1.7) internal successors, (102), 73 states have internal predecessors, (102), 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) [2021-06-16 17:12:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-06-16 17:12:00,092 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:12:00,093 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:12:00,093 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 17:12:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:12:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash -2051408769, now seen corresponding path program 1 times [2021-06-16 17:12:00,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:12:00,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470881333] [2021-06-16 17:12:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:12:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:12:00,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-16 17:12:00,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:12:00,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:12:00,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470881333] [2021-06-16 17:12:00,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470881333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:12:00,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:12:00,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 17:12:00,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518422830] [2021-06-16 17:12:00,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 17:12:00,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:12:00,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 17:12:00,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 17:12:00,247 INFO L87 Difference]: Start difference. First operand has 74 states, 60 states have (on average 1.7) internal successors, (102), 73 states have internal predecessors, (102), 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) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-06-16 17:12:00,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:12:00,261 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2021-06-16 17:12:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 17:12:00,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2021-06-16 17:12:00,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:12:00,267 INFO L225 Difference]: With dead ends: 93 [2021-06-16 17:12:00,267 INFO L226 Difference]: Without dead ends: 70 [2021-06-16 17:12:00,268 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 17:12:00,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-06-16 17:12:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-06-16 17:12:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 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) [2021-06-16 17:12:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2021-06-16 17:12:00,299 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 22 [2021-06-16 17:12:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:12:00,299 INFO L482 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2021-06-16 17:12:00,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-06-16 17:12:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2021-06-16 17:12:00,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-16 17:12:00,300 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:12:00,300 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:12:00,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 17:12:00,301 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 17:12:00,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:12:00,301 INFO L82 PathProgramCache]: Analyzing trace with hash 2100264314, now seen corresponding path program 1 times [2021-06-16 17:12:00,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:12:00,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829587498] [2021-06-16 17:12:00,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:12:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:12:00,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-16 17:12:00,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:12:00,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:12:00,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829587498] [2021-06-16 17:12:00,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829587498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:12:00,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:12:00,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 17:12:00,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140477312] [2021-06-16 17:12:00,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 17:12:00,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:12:00,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 17:12:00,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 17:12:00,336 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-06-16 17:12:00,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:12:00,370 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2021-06-16 17:12:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 17:12:00,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) Word has length 23 [2021-06-16 17:12:00,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:12:00,371 INFO L225 Difference]: With dead ends: 76 [2021-06-16 17:12:00,371 INFO L226 Difference]: Without dead ends: 25 [2021-06-16 17:12:00,372 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-16 17:12:00,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-06-16 17:12:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-06-16 17:12:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 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) [2021-06-16 17:12:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-06-16 17:12:00,374 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2021-06-16 17:12:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:12:00,374 INFO L482 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-06-16 17:12:00,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-06-16 17:12:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-06-16 17:12:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-16 17:12:00,375 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:12:00,375 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:12:00,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 17:12:00,375 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 17:12:00,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:12:00,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1095264530, now seen corresponding path program 1 times [2021-06-16 17:12:00,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:12:00,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293988716] [2021-06-16 17:12:00,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:12:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:12:00,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:12:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:12:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:12:00,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:12:00,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293988716] [2021-06-16 17:12:00,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293988716] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:12:00,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:12:00,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 17:12:00,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213963266] [2021-06-16 17:12:00,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 17:12:00,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:12:00,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 17:12:00,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 17:12:00,411 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-06-16 17:12:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:12:00,420 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-06-16 17:12:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 17:12:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) Word has length 23 [2021-06-16 17:12:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:12:00,421 INFO L225 Difference]: With dead ends: 23 [2021-06-16 17:12:00,421 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 17:12:00,421 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-16 17:12:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 17:12:00,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 17:12:00,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-16 17:12:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 17:12:00,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-06-16 17:12:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:12:00,422 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 17:12:00,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-06-16 17:12:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 17:12:00,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 17:12:00,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 17:12:00,424 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 17:12:00,425 INFO L202 PluginConnector]: Adding new model bluetooth.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 05:12:00 BasicIcfg [2021-06-16 17:12:00,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 17:12:00,426 INFO L168 Benchmark]: Toolchain (without parser) took 722.64 ms. Allocated memory is still 176.2 MB. Free memory was 156.4 MB in the beginning and 139.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2021-06-16 17:12:00,427 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.40 ms. Allocated memory is still 176.2 MB. Free memory is still 157.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 17:12:00,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 176.2 MB. Free memory was 156.4 MB in the beginning and 154.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 17:12:00,427 INFO L168 Benchmark]: Boogie Preprocessor took 11.75 ms. Allocated memory is still 176.2 MB. Free memory was 154.9 MB in the beginning and 154.0 MB in the end (delta: 915.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 17:12:00,428 INFO L168 Benchmark]: RCFGBuilder took 185.41 ms. Allocated memory is still 176.2 MB. Free memory was 154.0 MB in the beginning and 142.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-16 17:12:00,428 INFO L168 Benchmark]: TraceAbstraction took 503.38 ms. Allocated memory is still 176.2 MB. Free memory was 142.1 MB in the beginning and 139.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-06-16 17:12:00,430 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 0.40 ms. Allocated memory is still 176.2 MB. Free memory is still 157.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 176.2 MB. Free memory was 156.4 MB in the beginning and 154.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.75 ms. Allocated memory is still 176.2 MB. Free memory was 154.9 MB in the beginning and 154.0 MB in the end (delta: 915.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 185.41 ms. Allocated memory is still 176.2 MB. Free memory was 154.0 MB in the beginning and 142.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 503.38 ms. Allocated memory is still 176.2 MB. Free memory was 142.1 MB in the beginning and 139.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 74, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 62, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 62, unknown conditional: 0, unknown unconditional: 62] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Independence queries for same thread: 12 - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 45 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 431.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 7.4ms, AutomataDifference: 78.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 92.0ms, PartialOrderReductionTime: 84.8ms, HoareTripleCheckerStatistics: 73 SDtfs, 38 SDslu, 59 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.0ms SsaConstructionTime, 22.8ms SatisfiabilityAnalysisTime, 123.0ms InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...