java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:33:40,041 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:33:40,043 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:33:40,054 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:33:40,054 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:33:40,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:33:40,056 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:33:40,058 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:33:40,060 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:33:40,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:33:40,062 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-14 16:33:40,087 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:33:40,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:33:40,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:33:40,103 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:33:40,103 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:33:40,103 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:33:40,103 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:33:40,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:33:40,104 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:33:40,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:33:40,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:33:40,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:33:40,105 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:33:40,105 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:33:40,106 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:33:40,106 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:33:40,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:33:40,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:33:40,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:33:40,192 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:33:40,193 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:33:40,194 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-14 16:33:40,194 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl' [2018-10-14 16:33:40,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:33:40,295 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:33:40,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:33:40,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:33:40,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:33:40,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/1) ... [2018-10-14 16:33:40,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:33:40,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:33:40,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:33:40,393 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:33:40,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (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 [2018-10-14 16:33:40,479 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:33:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:33:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:33:41,285 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:33:41,286 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:41 BoogieIcfgContainer [2018-10-14 16:33:41,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:33:41,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:33:41,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:33:41,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:33:41,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:40" (1/2) ... [2018-10-14 16:33:41,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0d34d and model type alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:33:41, skipping insertion in model container [2018-10-14 16:33:41,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:41" (2/2) ... [2018-10-14 16:33:41,295 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-14 16:33:41,304 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:33:41,314 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:33:41,332 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:33:41,362 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:33:41,362 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:33:41,362 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:33:41,363 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:33:41,363 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:33:41,363 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:33:41,363 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:33:41,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:33:41,364 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:33:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2018-10-14 16:33:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-14 16:33:41,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:41,399 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:41,400 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:41,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:41,407 INFO L82 PathProgramCache]: Analyzing trace with hash -165905117, now seen corresponding path program 1 times [2018-10-14 16:33:41,459 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:42,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:42,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-14 16:33:42,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:33:42,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:33:42,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:33:42,183 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 11 states. [2018-10-14 16:33:42,530 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-14 16:33:42,834 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-10-14 16:33:43,236 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-10-14 16:33:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:44,057 INFO L93 Difference]: Finished difference Result 180 states and 182 transitions. [2018-10-14 16:33:44,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-14 16:33:44,059 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2018-10-14 16:33:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:44,074 INFO L225 Difference]: With dead ends: 180 [2018-10-14 16:33:44,074 INFO L226 Difference]: Without dead ends: 140 [2018-10-14 16:33:44,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:33:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-14 16:33:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2018-10-14 16:33:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-14 16:33:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 117 transitions. [2018-10-14 16:33:44,128 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 117 transitions. Word has length 63 [2018-10-14 16:33:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:44,128 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 117 transitions. [2018-10-14 16:33:44,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:33:44,129 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 117 transitions. [2018-10-14 16:33:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-14 16:33:44,133 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:44,134 INFO L375 BasicCegarLoop]: trace histogram [2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:44,134 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:44,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:44,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1938485649, now seen corresponding path program 1 times [2018-10-14 16:33:44,136 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:44,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:44,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:33:44,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:33:44,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:33:44,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:44,227 INFO L87 Difference]: Start difference. First operand 116 states and 117 transitions. Second operand 3 states. [2018-10-14 16:33:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:44,302 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2018-10-14 16:33:44,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:33:44,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2018-10-14 16:33:44,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:44,305 INFO L225 Difference]: With dead ends: 170 [2018-10-14 16:33:44,305 INFO L226 Difference]: Without dead ends: 170 [2018-10-14 16:33:44,306 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:44,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-10-14 16:33:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 150. [2018-10-14 16:33:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-14 16:33:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2018-10-14 16:33:44,322 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 106 [2018-10-14 16:33:44,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:44,322 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2018-10-14 16:33:44,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:33:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2018-10-14 16:33:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-14 16:33:44,325 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:44,325 INFO L375 BasicCegarLoop]: trace histogram [2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:44,326 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:44,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:44,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1932400305, now seen corresponding path program 1 times [2018-10-14 16:33:44,327 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:45,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:45,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-14 16:33:45,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-14 16:33:45,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-14 16:33:45,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:33:45,363 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 27 states. [2018-10-14 16:33:47,024 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-10-14 16:33:47,455 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2018-10-14 16:33:49,747 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-14 16:33:50,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:50,346 INFO L93 Difference]: Finished difference Result 323 states and 329 transitions. [2018-10-14 16:33:50,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-14 16:33:50,347 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 106 [2018-10-14 16:33:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:50,350 INFO L225 Difference]: With dead ends: 323 [2018-10-14 16:33:50,350 INFO L226 Difference]: Without dead ends: 303 [2018-10-14 16:33:50,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=465, Invalid=2957, Unknown=0, NotChecked=0, Total=3422 [2018-10-14 16:33:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-10-14 16:33:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 193. [2018-10-14 16:33:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-10-14 16:33:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 195 transitions. [2018-10-14 16:33:50,367 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 195 transitions. Word has length 106 [2018-10-14 16:33:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:50,368 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 195 transitions. [2018-10-14 16:33:50,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-14 16:33:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 195 transitions. [2018-10-14 16:33:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-14 16:33:50,371 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:50,371 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2018-10-14 16:33:50,372 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:50,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:50,372 INFO L82 PathProgramCache]: Analyzing trace with hash -206160189, now seen corresponding path program 1 times [2018-10-14 16:33:50,373 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:52,250 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-14 16:33:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:53,107 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:53,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-14 16:33:53,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-14 16:33:53,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-14 16:33:53,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1672, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 16:33:53,110 INFO L87 Difference]: Start difference. First operand 193 states and 195 transitions. Second operand 43 states. [2018-10-14 16:33:54,979 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-14 16:33:55,150 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2018-10-14 16:33:55,397 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2018-10-14 16:33:55,604 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2018-10-14 16:33:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:59,347 INFO L93 Difference]: Finished difference Result 409 states and 417 transitions. [2018-10-14 16:33:59,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-10-14 16:33:59,348 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 149 [2018-10-14 16:33:59,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:59,352 INFO L225 Difference]: With dead ends: 409 [2018-10-14 16:33:59,352 INFO L226 Difference]: Without dead ends: 389 [2018-10-14 16:33:59,355 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1033, Invalid=7339, Unknown=0, NotChecked=0, Total=8372 [2018-10-14 16:33:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-10-14 16:33:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 277. [2018-10-14 16:33:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-10-14 16:33:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 280 transitions. [2018-10-14 16:33:59,376 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 280 transitions. Word has length 149 [2018-10-14 16:33:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:59,377 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 280 transitions. [2018-10-14 16:33:59,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-14 16:33:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 280 transitions. [2018-10-14 16:33:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-14 16:33:59,381 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:59,382 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2018-10-14 16:33:59,382 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:59,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:59,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2026595247, now seen corresponding path program 2 times [2018-10-14 16:33:59,383 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:00,289 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-10-14 16:34:00,490 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-14 16:34:01,458 WARN L179 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2018-10-14 16:34:01,773 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2018-10-14 16:34:02,099 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2018-10-14 16:34:02,302 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2018-10-14 16:34:02,969 WARN L179 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 40 [2018-10-14 16:34:03,734 WARN L179 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2018-10-14 16:34:03,970 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2018-10-14 16:34:05,034 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2018-10-14 16:34:05,829 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-14 16:34:06,307 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2018-10-14 16:34:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:08,476 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:08,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-10-14 16:34:08,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-10-14 16:34:08,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-10-14 16:34:08,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=4055, Unknown=0, NotChecked=0, Total=4290 [2018-10-14 16:34:08,479 INFO L87 Difference]: Start difference. First operand 277 states and 280 transitions. Second operand 66 states. [2018-10-14 16:34:10,162 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 56 [2018-10-14 16:34:10,496 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 62 [2018-10-14 16:34:10,756 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 52 [2018-10-14 16:34:11,355 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2018-10-14 16:34:11,573 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2018-10-14 16:34:11,814 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-14 16:34:12,519 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2018-10-14 16:34:12,966 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2018-10-14 16:34:13,292 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2018-10-14 16:34:13,718 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2018-10-14 16:34:14,002 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2018-10-14 16:34:14,448 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2018-10-14 16:34:14,740 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-14 16:34:15,251 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 61 [2018-10-14 16:34:15,610 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 65 [2018-10-14 16:34:16,111 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 67 [2018-10-14 16:34:16,366 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 60 [2018-10-14 16:34:16,764 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 69 [2018-10-14 16:34:17,112 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 62 [2018-10-14 16:34:18,382 WARN L179 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 40 [2018-10-14 16:34:18,803 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 43 [2018-10-14 16:34:19,169 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 47 [2018-10-14 16:34:19,499 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2018-10-14 16:34:20,115 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 51 [2018-10-14 16:34:20,390 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 41 [2018-10-14 16:34:20,653 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 41 [2018-10-14 16:34:21,054 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2018-10-14 16:34:21,807 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 51 [2018-10-14 16:34:22,327 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 53 [2018-10-14 16:34:23,304 WARN L179 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2018-10-14 16:34:23,685 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 56 [2018-10-14 16:34:24,244 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 59 [2018-10-14 16:34:24,812 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 62 [2018-10-14 16:34:25,465 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 73 [2018-10-14 16:34:25,648 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-10-14 16:34:26,234 WARN L179 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 78 [2018-10-14 16:34:26,432 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2018-10-14 16:34:26,963 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 84 [2018-10-14 16:34:27,177 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2018-10-14 16:34:27,779 WARN L179 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 87 [2018-10-14 16:34:27,990 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2018-10-14 16:34:28,466 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 90 [2018-10-14 16:34:28,685 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2018-10-14 16:34:29,021 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2018-10-14 16:34:29,493 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 65 [2018-10-14 16:34:29,988 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 68 [2018-10-14 16:34:31,038 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 48 [2018-10-14 16:34:31,282 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 52 [2018-10-14 16:34:31,617 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 41 [2018-10-14 16:34:32,864 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2018-10-14 16:34:33,068 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2018-10-14 16:34:33,265 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2018-10-14 16:34:33,479 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2018-10-14 16:34:33,689 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-10-14 16:34:34,293 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2018-10-14 16:34:35,633 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2018-10-14 16:34:36,753 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2018-10-14 16:34:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:36,755 INFO L93 Difference]: Finished difference Result 291 states and 295 transitions. [2018-10-14 16:34:36,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-10-14 16:34:36,755 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 192 [2018-10-14 16:34:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:36,756 INFO L225 Difference]: With dead ends: 291 [2018-10-14 16:34:36,756 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:34:36,762 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6518 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=3751, Invalid=22981, Unknown=0, NotChecked=0, Total=26732 [2018-10-14 16:34:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:34:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:34:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:34:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:34:36,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2018-10-14 16:34:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:36,763 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:34:36,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-10-14 16:34:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:34:36,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:34:36,768 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:34:36 BoogieIcfgContainer [2018-10-14 16:34:36,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:34:36,769 INFO L168 Benchmark]: Toolchain (without parser) took 56474.58 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 502.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -534.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-14 16:34:36,770 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:34:36,770 INFO L168 Benchmark]: Boogie Preprocessor took 94.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:34:36,771 INFO L168 Benchmark]: RCFGBuilder took 895.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:34:36,771 INFO L168 Benchmark]: TraceAbstraction took 55480.37 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 502.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -565.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-14 16:34:36,775 INFO L336 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 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 895.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55480.37 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 502.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -565.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 152]: 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 1 procedures, 116 locations, 1 error locations. SAFE Result, 55.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 41.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 458 SDtfs, 6610 SDslu, 5416 SDs, 0 SdLazy, 9122 SolverSat, 725 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8636 ImplicationChecksByTransitivity, 41.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=4, 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, 5 MinimizatonAttempts, 266 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 616 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 1385448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/159 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-34-36-785.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-34-36-785.csv Received shutdown request...