java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/concurrentBoogie/fork_unchanged_local_variables2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:08,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:08,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:08,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:08,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:08,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:08,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:08,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:08,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:08,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:08,995 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:08,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:08,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:08,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:09,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:09,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:09,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:09,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:09,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:09,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:09,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:09,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:09,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:09,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:09,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:09,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:09,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:09,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:09,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:09,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:09,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:09,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:09,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:09,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:09,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:09,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:09,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:09,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:09,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:09,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:09,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:09,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:09,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:09,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:09,125 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:09,126 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:09,127 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/fork_unchanged_local_variables2.bpl [2019-08-05 09:52:09,127 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/fork_unchanged_local_variables2.bpl' [2019-08-05 09:52:09,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:09,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:09,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:09,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:09,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:09,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:09,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:09,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:09,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:09,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... [2019-08-05 09:52:09,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:09,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:09,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:09,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:09,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 09:52:09,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2019-08-05 09:52:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-08-05 09:52:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-08-05 09:52:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:09,322 WARN L201 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-08-05 09:52:09,478 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:09,479 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:09,480 INFO L202 PluginConnector]: Adding new model fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:09 BoogieIcfgContainer [2019-08-05 09:52:09,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:09,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:09,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:09,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:09,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:09" (1/2) ... [2019-08-05 09:52:09,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c90f97 and model type fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:09, skipping insertion in model container [2019-08-05 09:52:09,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:09" (2/2) ... [2019-08-05 09:52:09,488 INFO L109 eAbstractionObserver]: Analyzing ICFG fork_unchanged_local_variables2.bpl [2019-08-05 09:52:09,516 WARN L317 ript$VariableManager]: TermVariabe Thread0_foo_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:09,517 WARN L317 ript$VariableManager]: TermVariabe Thread0_foo_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-08-05 09:52:09,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:09,540 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 09:52:09,556 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 09:52:09,580 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:09,581 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:09,581 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:09,582 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:09,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:09,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:09,582 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:09,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:09,583 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:09,591 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15places, 15 transitions [2019-08-05 09:52:09,601 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 16 states. [2019-08-05 09:52:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-08-05 09:52:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 09:52:09,611 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:09,612 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:09,614 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:09,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:09,620 INFO L82 PathProgramCache]: Analyzing trace with hash -679701665, now seen corresponding path program 1 times [2019-08-05 09:52:09,670 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:09,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:09,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:09,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:09,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 09:52:09,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:09,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:09,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:09,856 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-08-05 09:52:10,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:10,003 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-08-05 09:52:10,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:10,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-08-05 09:52:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:10,017 INFO L225 Difference]: With dead ends: 26 [2019-08-05 09:52:10,017 INFO L226 Difference]: Without dead ends: 24 [2019-08-05 09:52:10,019 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-08-05 09:52:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-08-05 09:52:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-08-05 09:52:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-08-05 09:52:10,052 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 10 [2019-08-05 09:52:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:10,053 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-08-05 09:52:10,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-08-05 09:52:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 09:52:10,054 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:10,054 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:10,055 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:10,055 INFO L82 PathProgramCache]: Analyzing trace with hash -58757504, now seen corresponding path program 1 times [2019-08-05 09:52:10,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:10,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 09:52:10,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:10,216 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 09:52:10,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 09:52:10,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 09:52:10,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 09:52:10,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 09:52:10,220 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 7 states. [2019-08-05 09:52:10,620 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2019-08-05 09:52:10,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:10,679 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-08-05 09:52:10,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 09:52:10,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-08-05 09:52:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:10,680 INFO L225 Difference]: With dead ends: 28 [2019-08-05 09:52:10,680 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:10,682 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-08-05 09:52:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:10,683 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-08-05 09:52:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:10,683 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:10,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 09:52:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:10,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:10,687 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-08-05 09:52:10,689 INFO L202 PluginConnector]: Adding new model fork_unchanged_local_variables2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:10 BasicIcfg [2019-08-05 09:52:10,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:10,692 INFO L168 Benchmark]: Toolchain (without parser) took 1523.49 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 109.2 MB in the beginning and 144.8 MB in the end (delta: -35.6 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:10,693 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.29 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 110.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:10,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.98 ms. Allocated memory is still 134.2 MB. Free memory was 109.2 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:10,696 INFO L168 Benchmark]: Boogie Preprocessor took 28.58 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 106.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:10,697 INFO L168 Benchmark]: RCFGBuilder took 238.15 ms. Allocated memory is still 134.2 MB. Free memory was 106.3 MB in the beginning and 96.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:10,699 INFO L168 Benchmark]: TraceAbstraction took 1208.00 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 96.3 MB in the beginning and 144.8 MB in the end (delta: -48.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 09:52:10,704 INFO L335 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 0.29 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 110.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.98 ms. Allocated memory is still 134.2 MB. Free memory was 109.2 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.58 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 106.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 238.15 ms. Allocated memory is still 134.2 MB. Free memory was 106.3 MB in the beginning and 96.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1208.00 ms. Allocated memory was 134.2 MB in the beginning and 172.0 MB in the end (delta: 37.7 MB). Free memory was 96.3 MB in the beginning and 144.8 MB in the end (delta: -48.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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 3 procedures, 18 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 32 SDslu, 43 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 5 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...