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/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/hhk2008.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:32:06,385 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:32:06,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:32:06,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:32:06,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:32:06,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:32:06,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:32:06,412 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:32:06,414 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:32:06,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:32:06,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 15:32:06,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 15:32:06,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 15:32:06,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 15:32:06,426 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 15:32:06,427 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 15:32:06,427 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 15:32:06,438 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 15:32:06,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 15:32:06,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 15:32:06,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 15:32:06,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 15:32:06,453 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 15:32:06,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 15:32:06,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 15:32:06,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 15:32:06,460 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 15:32:06,461 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 15:32:06,461 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 15:32:06,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 15:32:06,465 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 15:32:06,466 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-15 15:32:06,470 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 15:32:06,484 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:32:06,484 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:32:06,485 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:32:06,485 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:32:06,485 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:32:06,486 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:32:06,489 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:32:06,490 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:32:06,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:32:06,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:32:06,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:32:06,491 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:32:06,491 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:32:06,492 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:32:06,492 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:32:06,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:32:06,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:32:06,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:32:06,574 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:32:06,575 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:32:06,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/hhk2008.c.i_3.bpl [2018-10-15 15:32:06,576 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/hhk2008.c.i_3.bpl' [2018-10-15 15:32:06,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:32:06,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 15:32:06,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:32:06,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:32:06,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:32:06,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/1) ... [2018-10-15 15:32:06,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:32:06,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:32:06,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:32:06,693 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:32:06,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (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 [2018-10-15 15:32:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:32:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:32:07,174 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:32:07,175 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:07 BoogieIcfgContainer [2018-10-15 15:32:07,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:32:07,176 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 15:32:07,176 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 15:32:07,177 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 15:32:07,190 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:07" (1/1) ... [2018-10-15 15:32:07,204 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 15:32:07,237 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:32:07 BasicIcfg [2018-10-15 15:32:07,238 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 15:32:07,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:32:07,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:32:07,246 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:32:07,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:32:06" (1/3) ... [2018-10-15 15:32:07,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198c27ac and model type hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:32:07, skipping insertion in model container [2018-10-15 15:32:07,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:32:07" (2/3) ... [2018-10-15 15:32:07,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198c27ac and model type hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:32:07, skipping insertion in model container [2018-10-15 15:32:07,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:32:07" (3/3) ... [2018-10-15 15:32:07,259 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008.c.i_3.bplleft_unchanged_by_heapseparator [2018-10-15 15:32:07,271 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:32:07,278 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:32:07,293 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:32:07,318 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:32:07,319 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:32:07,319 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:32:07,319 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:32:07,320 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:32:07,320 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:32:07,320 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:32:07,320 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:32:07,320 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:32:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-10-15 15:32:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-15 15:32:07,342 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:32:07,343 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] [2018-10-15 15:32:07,344 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:32:07,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:32:07,351 INFO L82 PathProgramCache]: Analyzing trace with hash -909321459, now seen corresponding path program 1 times [2018-10-15 15:32:07,405 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:32:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:32:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:32:07,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:32:07,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-15 15:32:07,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 15:32:07,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 15:32:07,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-15 15:32:07,970 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2018-10-15 15:32:08,422 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-10-15 15:32:08,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:32:08,646 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-10-15 15:32:08,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-15 15:32:08,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-10-15 15:32:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:32:08,661 INFO L225 Difference]: With dead ends: 33 [2018-10-15 15:32:08,661 INFO L226 Difference]: Without dead ends: 29 [2018-10-15 15:32:08,664 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-10-15 15:32:08,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-15 15:32:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-10-15 15:32:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 15:32:08,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 15:32:08,699 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 22 [2018-10-15 15:32:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:32:08,699 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 15:32:08,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 15:32:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 15:32:08,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 15:32:08,701 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:32:08,702 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] [2018-10-15 15:32:08,702 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:32:08,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:32:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash -600629551, now seen corresponding path program 1 times [2018-10-15 15:32:08,706 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:32:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:32:09,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:32:09,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:32:09,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 15:32:09,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 15:32:09,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 15:32:09,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-15 15:32:09,416 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 10 states. [2018-10-15 15:32:09,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:32:09,732 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-10-15 15:32:09,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-15 15:32:09,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-10-15 15:32:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:32:09,736 INFO L225 Difference]: With dead ends: 36 [2018-10-15 15:32:09,736 INFO L226 Difference]: Without dead ends: 32 [2018-10-15 15:32:09,738 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-10-15 15:32:09,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-15 15:32:09,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-10-15 15:32:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-15 15:32:09,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-10-15 15:32:09,743 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-10-15 15:32:09,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:32:09,743 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-10-15 15:32:09,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 15:32:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-10-15 15:32:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-15 15:32:09,745 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:32:09,745 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:32:09,745 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:32:09,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:32:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash 109699221, now seen corresponding path program 2 times [2018-10-15 15:32:09,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:32:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:32:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-15 15:32:10,030 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:32:10,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 15:32:10,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 15:32:10,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 15:32:10,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-10-15 15:32:10,032 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 11 states. [2018-10-15 15:32:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:32:10,456 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-15 15:32:10,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 15:32:10,457 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-10-15 15:32:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:32:10,458 INFO L225 Difference]: With dead ends: 28 [2018-10-15 15:32:10,458 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:32:10,459 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-10-15 15:32:10,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:32:10,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:32:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:32:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:32:10,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-10-15 15:32:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:32:10,460 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:32:10,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 15:32:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:32:10,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:32:10,465 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:32:10 BasicIcfg [2018-10-15 15:32:10,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:32:10,466 INFO L168 Benchmark]: Toolchain (without parser) took 3828.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 169.1 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:32:10,468 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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. [2018-10-15 15:32:10,469 INFO L168 Benchmark]: Boogie Preprocessor took 51.39 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. [2018-10-15 15:32:10,469 INFO L168 Benchmark]: RCFGBuilder took 482.52 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:32:10,471 INFO L168 Benchmark]: IcfgTransformer took 62.14 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. [2018-10-15 15:32:10,472 INFO L168 Benchmark]: TraceAbstraction took 3223.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-15 15:32:10,476 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 0.23 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 51.39 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 482.52 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 62.14 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. * TraceAbstraction took 3223.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: 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, 27 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 64 SDslu, 243 SDs, 0 SdLazy, 235 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=2, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 11473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 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/hhk2008.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_15-32-10-489.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/hhk2008.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-32-10-489.csv Received shutdown request...