/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 11:59:57,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 11:59:57,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 11:59:57,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 11:59:57,940 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.epf [2021-06-30 11:59:57,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 11:59:57,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 11:59:57,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 11:59:57,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 11:59:57,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 11:59:57,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 11:59:57,972 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 11:59:57,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 11:59:57,972 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 11:59:57,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 11:59:57,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 11:59:57,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 11:59:57,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 11:59:57,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 11:59:57,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 11:59:57,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 11:59:57,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 11:59:57,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 11:59:57,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 11:59:58,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 11:59:58,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 11:59:58,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 11:59:58,252 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 11:59:58,253 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 11:59:58,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr08.bpl [2021-06-30 11:59:58,253 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr08.bpl' [2021-06-30 11:59:58,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 11:59:58,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 11:59:58,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 11:59:58,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 11:59:58,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 11:59:58,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 11:59:58,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 11:59:58,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 11:59:58,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 11:59:58,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/1) ... [2021-06-30 11:59:58,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 11:59:58,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 11:59:58,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 11:59:58,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 11:59:58,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (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 [2021-06-30 11:59:58,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 11:59:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 11:59:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 11:59:58,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 11:59:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 11:59:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 11:59:58,359 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 11:59:58,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 11:59:58,461 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 11:59:58,462 INFO L202 PluginConnector]: Adding new model incr-decr08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 11:59:58 BoogieIcfgContainer [2021-06-30 11:59:58,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 11:59:58,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 11:59:58,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 11:59:58,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 11:59:58,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:59:58" (1/2) ... [2021-06-30 11:59:58,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fd05b9 and model type incr-decr08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 11:59:58, skipping insertion in model container [2021-06-30 11:59:58,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 11:59:58" (2/2) ... [2021-06-30 11:59:58,467 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr08.bpl [2021-06-30 11:59:58,470 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 11:59:58,471 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 11:59:58,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 11:59:58,471 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 11:59:58,616 INFO L149 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-06-30 11:59:58,631 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-30 11:59:58,644 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 11:59:58,644 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 11:59:58,644 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 11:59:58,645 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 11:59:58,645 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 11:59:58,645 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 11:59:58,645 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 11:59:58,645 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 11:59:58,652 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 52 transitions, 168 flow [2021-06-30 11:59:59,875 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13125 states, 13122 states have (on average 7.750190519737845) internal successors, (101698), 13122 states have internal predecessors, (101698), 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) [2021-06-30 11:59:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 13125 states, 13122 states have (on average 7.750190519737845) internal successors, (101698), 13122 states have internal predecessors, (101698), 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) [2021-06-30 12:00:00,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-06-30 12:00:00,007 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:00,007 INFO L504 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, 1, 1, 1] [2021-06-30 12:00:00,008 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:00,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1862427419, now seen corresponding path program 1 times [2021-06-30 12:00:00,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:00,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117826781] [2021-06-30 12:00:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:00,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:00,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117826781] [2021-06-30 12:00:00,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117826781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:00:00,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:00:00,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-30 12:00:00,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575055203] [2021-06-30 12:00:00,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-30 12:00:00,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:00,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-30 12:00:00,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 12:00:00,238 INFO L87 Difference]: Start difference. First operand has 13125 states, 13122 states have (on average 7.750190519737845) internal successors, (101698), 13122 states have internal predecessors, (101698), 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, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-06-30 12:00:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:00,573 INFO L93 Difference]: Finished difference Result 13888 states and 107331 transitions. [2021-06-30 12:00:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-30 12:00:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-06-30 12:00:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:00,832 INFO L225 Difference]: With dead ends: 13888 [2021-06-30 12:00:00,832 INFO L226 Difference]: Without dead ends: 13879 [2021-06-30 12:00:00,833 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 12:00:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13879 states. [2021-06-30 12:00:01,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13879 to 13879. [2021-06-30 12:00:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13879 states, 13878 states have (on average 7.730724888312437) internal successors, (107287), 13878 states have internal predecessors, (107287), 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) [2021-06-30 12:00:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13879 states to 13879 states and 107287 transitions. [2021-06-30 12:00:02,260 INFO L78 Accepts]: Start accepts. Automaton has 13879 states and 107287 transitions. Word has length 26 [2021-06-30 12:00:02,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:02,262 INFO L482 AbstractCegarLoop]: Abstraction has 13879 states and 107287 transitions. [2021-06-30 12:00:02,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-06-30 12:00:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 13879 states and 107287 transitions. [2021-06-30 12:00:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-06-30 12:00:02,392 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:02,392 INFO L504 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, 1, 1, 1, 1, 1] [2021-06-30 12:00:02,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-30 12:00:02,393 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1686856349, now seen corresponding path program 1 times [2021-06-30 12:00:02,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:02,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739084291] [2021-06-30 12:00:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:00:02,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:02,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739084291] [2021-06-30 12:00:02,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739084291] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:00:02,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:00:02,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:00:02,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343461099] [2021-06-30 12:00:02,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:00:02,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:02,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:00:02,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:00:02,546 INFO L87 Difference]: Start difference. First operand 13879 states and 107287 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-06-30 12:00:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:03,071 INFO L93 Difference]: Finished difference Result 17203 states and 132366 transitions. [2021-06-30 12:00:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:00:03,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2021-06-30 12:00:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:03,239 INFO L225 Difference]: With dead ends: 17203 [2021-06-30 12:00:03,239 INFO L226 Difference]: Without dead ends: 17084 [2021-06-30 12:00:03,240 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:00:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17084 states. [2021-06-30 12:00:04,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17084 to 16365. [2021-06-30 12:00:04,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16365 states, 16364 states have (on average 7.715778538254705) internal successors, (126261), 16364 states have internal predecessors, (126261), 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) [2021-06-30 12:00:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16365 states to 16365 states and 126261 transitions. [2021-06-30 12:00:04,894 INFO L78 Accepts]: Start accepts. Automaton has 16365 states and 126261 transitions. Word has length 28 [2021-06-30 12:00:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:04,895 INFO L482 AbstractCegarLoop]: Abstraction has 16365 states and 126261 transitions. [2021-06-30 12:00:04,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-06-30 12:00:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 16365 states and 126261 transitions. [2021-06-30 12:00:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-06-30 12:00:04,974 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:04,974 INFO L504 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, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:04,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-30 12:00:04,975 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:04,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:04,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1242140289, now seen corresponding path program 1 times [2021-06-30 12:00:04,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:04,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45994703] [2021-06-30 12:00:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:00:05,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:05,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45994703] [2021-06-30 12:00:05,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45994703] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:00:05,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:00:05,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 12:00:05,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834214861] [2021-06-30 12:00:05,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:00:05,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:05,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:00:05,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:00:05,023 INFO L87 Difference]: Start difference. First operand 16365 states and 126261 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-06-30 12:00:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:05,554 INFO L93 Difference]: Finished difference Result 23518 states and 181015 transitions. [2021-06-30 12:00:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:00:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-06-30 12:00:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:05,938 INFO L225 Difference]: With dead ends: 23518 [2021-06-30 12:00:05,939 INFO L226 Difference]: Without dead ends: 22818 [2021-06-30 12:00:05,940 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:00:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22818 states. [2021-06-30 12:00:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22818 to 19843. [2021-06-30 12:00:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19843 states, 19842 states have (on average 7.731529079729866) internal successors, (153409), 19842 states have internal predecessors, (153409), 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) [2021-06-30 12:00:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19843 states to 19843 states and 153409 transitions. [2021-06-30 12:00:07,377 INFO L78 Accepts]: Start accepts. Automaton has 19843 states and 153409 transitions. Word has length 30 [2021-06-30 12:00:07,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:07,378 INFO L482 AbstractCegarLoop]: Abstraction has 19843 states and 153409 transitions. [2021-06-30 12:00:07,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-06-30 12:00:07,382 INFO L276 IsEmpty]: Start isEmpty. Operand 19843 states and 153409 transitions. [2021-06-30 12:00:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 12:00:07,514 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:07,514 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:07,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-30 12:00:07,514 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:07,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1671833761, now seen corresponding path program 1 times [2021-06-30 12:00:07,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:07,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943744713] [2021-06-30 12:00:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-30 12:00:07,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:07,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943744713] [2021-06-30 12:00:07,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943744713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:00:07,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:00:07,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-30 12:00:07,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582359264] [2021-06-30 12:00:07,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:00:07,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:07,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:00:07,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:00:07,604 INFO L87 Difference]: Start difference. First operand 19843 states and 153409 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-06-30 12:00:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:08,148 INFO L93 Difference]: Finished difference Result 30299 states and 234159 transitions. [2021-06-30 12:00:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:00:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-06-30 12:00:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:08,464 INFO L225 Difference]: With dead ends: 30299 [2021-06-30 12:00:08,464 INFO L226 Difference]: Without dead ends: 27782 [2021-06-30 12:00:08,465 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.8ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:00:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27782 states. [2021-06-30 12:00:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27782 to 22041. [2021-06-30 12:00:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22041 states, 22040 states have (on average 7.759845735027223) internal successors, (171027), 22040 states have internal predecessors, (171027), 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) [2021-06-30 12:00:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22041 states to 22041 states and 171027 transitions. [2021-06-30 12:00:10,064 INFO L78 Accepts]: Start accepts. Automaton has 22041 states and 171027 transitions. Word has length 32 [2021-06-30 12:00:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:10,064 INFO L482 AbstractCegarLoop]: Abstraction has 22041 states and 171027 transitions. [2021-06-30 12:00:10,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2021-06-30 12:00:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 22041 states and 171027 transitions. [2021-06-30 12:00:10,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-30 12:00:10,140 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:10,140 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:10,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-30 12:00:10,140 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:10,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:10,141 INFO L82 PathProgramCache]: Analyzing trace with hash -593574631, now seen corresponding path program 1 times [2021-06-30 12:00:10,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:10,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702712449] [2021-06-30 12:00:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:10,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:10,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702712449] [2021-06-30 12:00:10,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702712449] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:10,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459723442] [2021-06-30 12:00:10,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:10,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-30 12:00:10,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:00:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:10,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459723442] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:10,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:00:10,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 12:00:10,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749840428] [2021-06-30 12:00:10,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 12:00:10,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:10,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 12:00:10,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:00:10,936 INFO L87 Difference]: Start difference. First operand 22041 states and 171027 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-06-30 12:00:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:11,753 INFO L93 Difference]: Finished difference Result 34238 states and 265782 transitions. [2021-06-30 12:00:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 12:00:11,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2021-06-30 12:00:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:12,153 INFO L225 Difference]: With dead ends: 34238 [2021-06-30 12:00:12,153 INFO L226 Difference]: Without dead ends: 28092 [2021-06-30 12:00:12,154 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 85.6ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 12:00:12,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28092 states. [2021-06-30 12:00:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28092 to 21415. [2021-06-30 12:00:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21415 states, 21414 states have (on average 7.781217894835154) internal successors, (166627), 21414 states have internal predecessors, (166627), 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) [2021-06-30 12:00:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21415 states to 21415 states and 166627 transitions. [2021-06-30 12:00:13,789 INFO L78 Accepts]: Start accepts. Automaton has 21415 states and 166627 transitions. Word has length 34 [2021-06-30 12:00:13,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:13,790 INFO L482 AbstractCegarLoop]: Abstraction has 21415 states and 166627 transitions. [2021-06-30 12:00:13,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-06-30 12:00:13,790 INFO L276 IsEmpty]: Start isEmpty. Operand 21415 states and 166627 transitions. [2021-06-30 12:00:13,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-30 12:00:13,905 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:13,905 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:14,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:14,121 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:14,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:14,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2092325013, now seen corresponding path program 1 times [2021-06-30 12:00:14,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:14,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071012330] [2021-06-30 12:00:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:14,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:14,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071012330] [2021-06-30 12:00:14,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071012330] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:14,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447536139] [2021-06-30 12:00:14,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:14,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-30 12:00:14,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:00:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:14,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447536139] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:14,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:00:14,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 12:00:14,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333696655] [2021-06-30 12:00:14,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 12:00:14,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:14,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 12:00:14,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:00:14,713 INFO L87 Difference]: Start difference. First operand 21415 states and 166627 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-30 12:00:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:15,551 INFO L93 Difference]: Finished difference Result 34011 states and 265032 transitions. [2021-06-30 12:00:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 12:00:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2021-06-30 12:00:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:15,702 INFO L225 Difference]: With dead ends: 34011 [2021-06-30 12:00:15,702 INFO L226 Difference]: Without dead ends: 23286 [2021-06-30 12:00:15,703 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 12:00:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23286 states. [2021-06-30 12:00:16,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23286 to 18357. [2021-06-30 12:00:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18357 states, 18356 states have (on average 7.7982675964262365) internal successors, (143145), 18356 states have internal predecessors, (143145), 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) [2021-06-30 12:00:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18357 states to 18357 states and 143145 transitions. [2021-06-30 12:00:17,065 INFO L78 Accepts]: Start accepts. Automaton has 18357 states and 143145 transitions. Word has length 36 [2021-06-30 12:00:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:17,065 INFO L482 AbstractCegarLoop]: Abstraction has 18357 states and 143145 transitions. [2021-06-30 12:00:17,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-06-30 12:00:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand 18357 states and 143145 transitions. [2021-06-30 12:00:17,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-06-30 12:00:17,337 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:17,337 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:17,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:17,539 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1344896845, now seen corresponding path program 1 times [2021-06-30 12:00:17,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:17,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226202813] [2021-06-30 12:00:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:17,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:17,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226202813] [2021-06-30 12:00:17,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226202813] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:17,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119609367] [2021-06-30 12:00:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:17,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-30 12:00:17,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:00:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:17,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119609367] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:17,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:00:17,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-06-30 12:00:17,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145245943] [2021-06-30 12:00:17,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-30 12:00:17,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:17,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-30 12:00:17,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-30 12:00:17,750 INFO L87 Difference]: Start difference. First operand 18357 states and 143145 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2021-06-30 12:00:18,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:18,562 INFO L93 Difference]: Finished difference Result 30366 states and 237581 transitions. [2021-06-30 12:00:18,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-30 12:00:18,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 38 [2021-06-30 12:00:18,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:18,650 INFO L225 Difference]: With dead ends: 30366 [2021-06-30 12:00:18,650 INFO L226 Difference]: Without dead ends: 16558 [2021-06-30 12:00:18,651 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.4ms TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-30 12:00:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16558 states. [2021-06-30 12:00:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16558 to 14443. [2021-06-30 12:00:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14443 states, 14442 states have (on average 7.833056363384573) internal successors, (113125), 14442 states have internal predecessors, (113125), 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) [2021-06-30 12:00:19,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14443 states to 14443 states and 113125 transitions. [2021-06-30 12:00:19,792 INFO L78 Accepts]: Start accepts. Automaton has 14443 states and 113125 transitions. Word has length 38 [2021-06-30 12:00:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:19,792 INFO L482 AbstractCegarLoop]: Abstraction has 14443 states and 113125 transitions. [2021-06-30 12:00:19,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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) [2021-06-30 12:00:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 14443 states and 113125 transitions. [2021-06-30 12:00:19,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-06-30 12:00:19,830 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:19,831 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:20,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:20,033 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:20,033 INFO L82 PathProgramCache]: Analyzing trace with hash -140986783, now seen corresponding path program 1 times [2021-06-30 12:00:20,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:20,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140791369] [2021-06-30 12:00:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:20,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:20,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140791369] [2021-06-30 12:00:20,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140791369] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:20,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328630209] [2021-06-30 12:00:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:20,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-30 12:00:20,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:00:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:00:20,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328630209] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:20,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:00:20,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-30 12:00:20,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514991922] [2021-06-30 12:00:20,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-30 12:00:20,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:20,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-30 12:00:20,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 12:00:20,244 INFO L87 Difference]: Start difference. First operand 14443 states and 113125 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2021-06-30 12:00:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:21,052 INFO L93 Difference]: Finished difference Result 24283 states and 190209 transitions. [2021-06-30 12:00:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 12:00:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 40 [2021-06-30 12:00:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:21,108 INFO L225 Difference]: With dead ends: 24283 [2021-06-30 12:00:21,108 INFO L226 Difference]: Without dead ends: 10727 [2021-06-30 12:00:21,109 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.1ms TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 12:00:21,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10727 states. [2021-06-30 12:00:21,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10727 to 10353. [2021-06-30 12:00:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10353 states, 10352 states have (on average 7.817523183925811) internal successors, (80927), 10352 states have internal predecessors, (80927), 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) [2021-06-30 12:00:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10353 states to 10353 states and 80927 transitions. [2021-06-30 12:00:22,010 INFO L78 Accepts]: Start accepts. Automaton has 10353 states and 80927 transitions. Word has length 40 [2021-06-30 12:00:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:22,011 INFO L482 AbstractCegarLoop]: Abstraction has 10353 states and 80927 transitions. [2021-06-30 12:00:22,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2021-06-30 12:00:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 10353 states and 80927 transitions. [2021-06-30 12:00:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-30 12:00:22,041 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 12:00:22,041 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:00:22,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:22,242 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 12:00:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:00:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 265005737, now seen corresponding path program 1 times [2021-06-30 12:00:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:00:22,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917533824] [2021-06-30 12:00:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:00:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:00:22,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:00:22,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917533824] [2021-06-30 12:00:22,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917533824] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:22,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855524387] [2021-06-30 12:00:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:00:22,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-30 12:00:22,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:00:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 12:00:22,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855524387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:00:22,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:00:22,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-30 12:00:22,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922291739] [2021-06-30 12:00:22,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-30 12:00:22,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:00:22,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-30 12:00:22,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-30 12:00:22,504 INFO L87 Difference]: Start difference. First operand 10353 states and 80927 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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) [2021-06-30 12:00:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 12:00:23,139 INFO L93 Difference]: Finished difference Result 10352 states and 80926 transitions. [2021-06-30 12:00:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 12:00:23,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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 42 [2021-06-30 12:00:23,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 12:00:23,140 INFO L225 Difference]: With dead ends: 10352 [2021-06-30 12:00:23,140 INFO L226 Difference]: Without dead ends: 0 [2021-06-30 12:00:23,141 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.5ms TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-30 12:00:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-30 12:00:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-30 12:00:23,141 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) [2021-06-30 12:00:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-30 12:00:23,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-06-30 12:00:23,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 12:00:23,141 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-30 12:00:23,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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) [2021-06-30 12:00:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-30 12:00:23,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-30 12:00:23,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:00:23,344 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 12:00:23,346 INFO L202 PluginConnector]: Adding new model incr-decr08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 12:00:23 BasicIcfg [2021-06-30 12:00:23,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 12:00:23,346 INFO L168 Benchmark]: Toolchain (without parser) took 25075.21 ms. Allocated memory was 207.6 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 187.3 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2021-06-30 12:00:23,346 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 207.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 12:00:23,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.80 ms. Allocated memory is still 207.6 MB. Free memory was 187.2 MB in the beginning and 185.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 12:00:23,346 INFO L168 Benchmark]: Boogie Preprocessor took 9.80 ms. Allocated memory is still 207.6 MB. Free memory was 185.7 MB in the beginning and 184.8 MB in the end (delta: 921.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 12:00:23,347 INFO L168 Benchmark]: RCFGBuilder took 158.45 ms. Allocated memory is still 207.6 MB. Free memory was 184.7 MB in the beginning and 175.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-30 12:00:23,347 INFO L168 Benchmark]: TraceAbstraction took 24882.24 ms. Allocated memory was 207.6 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 175.1 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2021-06-30 12:00:23,347 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 0.12 ms. Allocated memory is still 207.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.80 ms. Allocated memory is still 207.6 MB. Free memory was 187.2 MB in the beginning and 185.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.80 ms. Allocated memory is still 207.6 MB. Free memory was 185.7 MB in the beginning and 184.8 MB in the end (delta: 921.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 158.45 ms. Allocated memory is still 207.6 MB. Free memory was 184.7 MB in the beginning and 175.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24882.24 ms. Allocated memory was 207.6 MB in the beginning and 6.8 GB in the end (delta: 6.6 GB). Free memory was 175.1 MB in the beginning and 5.1 GB in the end (delta: -4.9 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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 10 procedures, 56 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24700.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 1002.0ms, AutomataDifference: 7743.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1230.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 857 SDtfs, 616 SDslu, 4226 SDs, 0 SdLazy, 4280 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1896.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 266 GetRequests, 208 SyntacticMatches, 13 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 383.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22041occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11147.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 23530 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 83.2ms SsaConstructionTime, 445.7ms SatisfiabilityAnalysisTime, 1756.7ms InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 3274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 905 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 10/66 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...