/usr/bin/java -Xmx16000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 16:02:11,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 16:02:11,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 16:02:11,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 16:02:11,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 16:02:11,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 16:02:11,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 16:02:11,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 16:02:11,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 16:02:11,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 16:02:11,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 16:02:11,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 16:02:11,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 16:02:11,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 16:02:11,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 16:02:11,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 16:02:11,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 16:02:11,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 16:02:11,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 16:02:11,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 16:02:11,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 16:02:11,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 16:02:11,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 16:02:12,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 16:02:12,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 16:02:12,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 16:02:12,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 16:02:12,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 16:02:12,021 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-SemanticLbe.epf [2021-03-11 16:02:12,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 16:02:12,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 16:02:12,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 16:02:12,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 16:02:12,056 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 16:02:12,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 16:02:12,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 16:02:12,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 16:02:12,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 16:02:12,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 16:02:12,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 16:02:12,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 16:02:12,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 16:02:12,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 16:02:12,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 16:02:12,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 16:02:12,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 16:02:12,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 16:02:12,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 16:02:12,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 16:02:12,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 16:02:12,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 16:02:12,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 16:02:12,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 16:02:12,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 16:02:12,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 16:02:12,354 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 16:02:12,371 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 16:02:12,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl [2021-03-11 16:02:12,372 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-1.wvr.bpl' [2021-03-11 16:02:12,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 16:02:12,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 16:02:12,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 16:02:12,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 16:02:12,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 16:02:12,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 16:02:12,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 16:02:12,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 16:02:12,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 16:02:12,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/1) ... [2021-03-11 16:02:12,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 16:02:12,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 16:02:12,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 16:02:12,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 16:02:12,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (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 [2021-03-11 16:02:12,540 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 16:02:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 16:02:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 16:02:12,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 16:02:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 16:02:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 16:02:12,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 16:02:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 16:02:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 16:02:12,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 16:02:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 16:02:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 16:02:12,543 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 16:02:12,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 16:02:12,687 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 16:02:12,688 INFO L202 PluginConnector]: Adding new model min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:02:12 BoogieIcfgContainer [2021-03-11 16:02:12,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 16:02:12,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 16:02:12,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 16:02:12,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 16:02:12,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:02:12" (1/2) ... [2021-03-11 16:02:12,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee97d8b and model type min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:02:12, skipping insertion in model container [2021-03-11 16:02:12,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:02:12" (2/2) ... [2021-03-11 16:02:12,694 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-1.wvr.bpl [2021-03-11 16:02:12,714 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 16:02:12,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 16:02:12,717 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 16:02:12,718 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 16:02:12,781 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 16:02:12,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 16:02:12,824 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 16:02:12,824 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 16:02:12,824 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 16:02:12,824 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 16:02:12,824 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 16:02:12,824 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 16:02:12,824 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 16:02:12,824 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 16:02:12,834 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 16:02:12,841 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 84 flow [2021-03-11 16:02:12,844 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 84 flow [2021-03-11 16:02:12,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 84 flow [2021-03-11 16:02:12,865 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-03-11 16:02:12,866 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 16:02:12,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 2/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2021-03-11 16:02:12,869 INFO L116 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-11 16:02:13,233 INFO L131 LiptonReduction]: Checked pairs total: 289 [2021-03-11 16:02:13,233 INFO L133 LiptonReduction]: Total number of compositions: 10 [2021-03-11 16:02:13,242 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 21 transitions, 66 flow [2021-03-11 16:02:13,254 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 67 states, 65 states have (on average 2.523076923076923) internal successors, (164), 66 states have internal predecessors, (164), 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) [2021-03-11 16:02:13,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 65 states have (on average 2.523076923076923) internal successors, (164), 66 states have internal predecessors, (164), 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) [2021-03-11 16:02:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 16:02:13,269 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:13,270 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:13,270 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:13,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:13,281 INFO L82 PathProgramCache]: Analyzing trace with hash -617668066, now seen corresponding path program 1 times [2021-03-11 16:02:13,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:13,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195108102] [2021-03-11 16:02:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:13,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 16:02:13,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:13,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:13,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195108102] [2021-03-11 16:02:13,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:13,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:02:13,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801999404] [2021-03-11 16:02:13,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 16:02:13,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:13,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 16:02:13,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 16:02:13,479 INFO L87 Difference]: Start difference. First operand has 67 states, 65 states have (on average 2.523076923076923) internal successors, (164), 66 states have internal predecessors, (164), 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 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-03-11 16:02:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:13,569 INFO L93 Difference]: Finished difference Result 161 states and 382 transitions. [2021-03-11 16:02:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 16:02:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-03-11 16:02:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:13,583 INFO L225 Difference]: With dead ends: 161 [2021-03-11 16:02:13,583 INFO L226 Difference]: Without dead ends: 109 [2021-03-11 16:02:13,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 16:02:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-03-11 16:02:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 89. [2021-03-11 16:02:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 2.4545454545454546) internal successors, (216), 88 states have internal predecessors, (216), 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) [2021-03-11 16:02:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 216 transitions. [2021-03-11 16:02:13,631 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 216 transitions. Word has length 15 [2021-03-11 16:02:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:13,632 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 216 transitions. [2021-03-11 16:02:13,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-03-11 16:02:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 216 transitions. [2021-03-11 16:02:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-11 16:02:13,635 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:13,635 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:13,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 16:02:13,635 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:13,636 INFO L82 PathProgramCache]: Analyzing trace with hash -704549006, now seen corresponding path program 1 times [2021-03-11 16:02:13,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:13,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109092737] [2021-03-11 16:02:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:13,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:02:13,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:13,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109092737] [2021-03-11 16:02:13,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:13,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 16:02:13,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664906030] [2021-03-11 16:02:13,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 16:02:13,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:13,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 16:02:13,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:02:13,692 INFO L87 Difference]: Start difference. First operand 89 states and 216 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-03-11 16:02:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:13,700 INFO L93 Difference]: Finished difference Result 77 states and 167 transitions. [2021-03-11 16:02:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:02:13,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-03-11 16:02:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:13,703 INFO L225 Difference]: With dead ends: 77 [2021-03-11 16:02:13,703 INFO L226 Difference]: Without dead ends: 67 [2021-03-11 16:02:13,704 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 16:02:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-03-11 16:02:13,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-03-11 16:02:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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) [2021-03-11 16:02:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 147 transitions. [2021-03-11 16:02:13,714 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 147 transitions. Word has length 16 [2021-03-11 16:02:13,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:13,715 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 147 transitions. [2021-03-11 16:02:13,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-03-11 16:02:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 147 transitions. [2021-03-11 16:02:13,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-11 16:02:13,716 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 16:02:13,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 16:02:13,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 16:02:13,717 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 16:02:13,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 16:02:13,718 INFO L82 PathProgramCache]: Analyzing trace with hash 399423970, now seen corresponding path program 1 times [2021-03-11 16:02:13,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 16:02:13,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617273028] [2021-03-11 16:02:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 16:02:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 16:02:13,774 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-11 16:02:13,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 16:02:13,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 16:02:13,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 16:02:13,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 16:02:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 16:02:13,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617273028] [2021-03-11 16:02:13,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 16:02:13,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 16:02:13,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091275064] [2021-03-11 16:02:13,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 16:02:13,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 16:02:13,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 16:02:13,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 16:02:13,809 INFO L87 Difference]: Start difference. First operand 67 states and 147 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-03-11 16:02:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 16:02:13,814 INFO L93 Difference]: Finished difference Result 29 states and 53 transitions. [2021-03-11 16:02:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 16:02:13,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-03-11 16:02:13,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 16:02:13,814 INFO L225 Difference]: With dead ends: 29 [2021-03-11 16:02:13,815 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 16:02:13,815 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 16:02:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 16:02:13,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 16:02:13,815 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) [2021-03-11 16:02:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 16:02:13,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-03-11 16:02:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 16:02:13,816 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 16:02:13,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-03-11 16:02:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 16:02:13,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 16:02:13,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 16:02:13,819 INFO L202 PluginConnector]: Adding new model min-max-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:02:13 BasicIcfg [2021-03-11 16:02:13,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 16:02:13,821 INFO L168 Benchmark]: Toolchain (without parser) took 1411.01 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 236.7 MB in the beginning and 319.2 MB in the end (delta: -82.5 MB). Peak memory consumption was 649.5 kB. Max. memory is 16.0 GB. [2021-03-11 16:02:13,821 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 181.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 16:02:13,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.48 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:13,825 INFO L168 Benchmark]: Boogie Preprocessor took 20.98 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:13,826 INFO L168 Benchmark]: RCFGBuilder took 226.91 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 237.4 MB in the end (delta: -3.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. [2021-03-11 16:02:13,827 INFO L168 Benchmark]: TraceAbstraction took 1129.83 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 237.4 MB in the beginning and 319.2 MB in the end (delta: -81.8 MB). Peak memory consumption was 955.8 kB. Max. memory is 16.0 GB. [2021-03-11 16:02:13,830 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 0.15 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 181.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.48 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.98 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 226.91 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 237.4 MB in the end (delta: -3.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1129.83 ms. Allocated memory was 255.9 MB in the beginning and 339.7 MB in the end (delta: 83.9 MB). Free memory was 237.4 MB in the beginning and 319.2 MB in the end (delta: -81.8 MB). Peak memory consumption was 955.8 kB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 389.6ms, 38 PlacesBefore, 29 PlacesAfterwards, 30 TransitionsBefore, 21 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 289 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 222, positive: 205, positive conditional: 0, positive unconditional: 205, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 139, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 139, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 222, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - PositiveResult [Line: 58]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 994.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 18.1ms, AutomataDifference: 139.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 430.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 41 SDtfs, 51 SDslu, 45 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 51.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 45.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.2ms SsaConstructionTime, 58.7ms SatisfiabilityAnalysisTime, 175.1ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...