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/20181015-LoopsPathprograms/cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:55:32,664 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:55:32,666 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:55:32,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-15 12:55:32,718 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 12:55:32,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:55:32,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:55:32,729 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:55:32,729 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:55:32,729 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:55:32,729 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:55:32,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:55:32,730 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:55:32,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:55:32,731 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:55:32,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:55:32,731 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:55:32,731 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:55:32,732 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:55:32,732 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:55:32,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:55:32,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:55:32,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:55:32,822 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:55:32,823 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:55:32,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl [2018-10-15 12:55:32,824 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl' [2018-10-15 12:55:32,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:55:32,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 12:55:32,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:55:32,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:55:32,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:55:32,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/1) ... [2018-10-15 12:55:32,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:55:32,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:55:32,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:55:32,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:55:32,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (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 12:55:32,987 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:55:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:55:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:55:33,252 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:55:33,253 INFO L202 PluginConnector]: Adding new model cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:33 BoogieIcfgContainer [2018-10-15 12:55:33,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:55:33,255 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 12:55:33,255 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 12:55:33,256 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 12:55:33,260 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:33" (1/1) ... [2018-10-15 12:55:33,266 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 12:55:33,308 INFO L202 PluginConnector]: Adding new model cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:33 BasicIcfg [2018-10-15 12:55:33,308 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 12:55:33,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:55:33,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:55:33,322 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:55:33,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:32" (1/3) ... [2018-10-15 12:55:33,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108c4eea and model type cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:33, skipping insertion in model container [2018-10-15 12:55:33,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:33" (2/3) ... [2018-10-15 12:55:33,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108c4eea and model type cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:33, skipping insertion in model container [2018-10-15 12:55:33,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:33" (3/3) ... [2018-10-15 12:55:33,333 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i_4.bplleft_unchanged_by_heapseparator [2018-10-15 12:55:33,357 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:55:33,370 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:55:33,397 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:55:33,430 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:55:33,431 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:55:33,432 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:55:33,432 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:55:33,432 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:55:33,432 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:55:33,432 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:55:33,433 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:55:33,433 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:55:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-15 12:55:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-15 12:55:33,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:33,472 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:33,474 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:33,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:33,483 INFO L82 PathProgramCache]: Analyzing trace with hash -85822228, now seen corresponding path program 1 times [2018-10-15 12:55:33,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:33,722 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 12:55:33,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:55:33,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 12:55:33,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 12:55:33,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 12:55:33,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 12:55:33,749 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-10-15 12:55:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:33,837 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-10-15 12:55:33,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 12:55:33,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-15 12:55:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:33,852 INFO L225 Difference]: With dead ends: 22 [2018-10-15 12:55:33,852 INFO L226 Difference]: Without dead ends: 22 [2018-10-15 12:55:33,854 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 [2018-10-15 12:55:33,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-15 12:55:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-10-15 12:55:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-15 12:55:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-10-15 12:55:33,888 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2018-10-15 12:55:33,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:33,888 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-10-15 12:55:33,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 12:55:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-10-15 12:55:33,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-15 12:55:33,889 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:33,889 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:33,890 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:33,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:33,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1349659757, now seen corresponding path program 1 times [2018-10-15 12:55:33,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:33,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:55:33,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 12:55:33,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 12:55:33,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 12:55:33,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 12:55:33,938 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2018-10-15 12:55:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:33,971 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-10-15 12:55:33,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 12:55:33,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-10-15 12:55:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:33,973 INFO L225 Difference]: With dead ends: 24 [2018-10-15 12:55:33,973 INFO L226 Difference]: Without dead ends: 24 [2018-10-15 12:55:33,974 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 [2018-10-15 12:55:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-15 12:55:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-15 12:55:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-15 12:55:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-10-15 12:55:33,978 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2018-10-15 12:55:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:33,979 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-10-15 12:55:33,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 12:55:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-10-15 12:55:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-15 12:55:33,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:33,980 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] [2018-10-15 12:55:33,980 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:33,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:33,981 INFO L82 PathProgramCache]: Analyzing trace with hash 654287504, now seen corresponding path program 1 times [2018-10-15 12:55:33,982 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-15 12:55:34,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:55:34,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-15 12:55:34,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-15 12:55:34,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-15 12:55:34,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 12:55:34,050 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 4 states. [2018-10-15 12:55:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:34,155 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2018-10-15 12:55:34,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 12:55:34,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-15 12:55:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:34,157 INFO L225 Difference]: With dead ends: 29 [2018-10-15 12:55:34,158 INFO L226 Difference]: Without dead ends: 29 [2018-10-15 12:55:34,158 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 12:55:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-15 12:55:34,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-10-15 12:55:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-15 12:55:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-10-15 12:55:34,163 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2018-10-15 12:55:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:34,164 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-10-15 12:55:34,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-15 12:55:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-10-15 12:55:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 12:55:34,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:34,165 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:34,166 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:34,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:34,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1870629999, now seen corresponding path program 2 times [2018-10-15 12:55:34,167 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:34,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:55:34,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-15 12:55:34,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 12:55:34,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 12:55:34,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 12:55:34,269 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 5 states. [2018-10-15 12:55:34,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:34,576 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-10-15 12:55:34,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 12:55:34,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-10-15 12:55:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:34,578 INFO L225 Difference]: With dead ends: 34 [2018-10-15 12:55:34,578 INFO L226 Difference]: Without dead ends: 31 [2018-10-15 12:55:34,578 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-15 12:55:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-15 12:55:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-10-15 12:55:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-15 12:55:34,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-10-15 12:55:34,583 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 26 [2018-10-15 12:55:34,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:34,583 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-10-15 12:55:34,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 12:55:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-10-15 12:55:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-15 12:55:34,585 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:34,585 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:34,585 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:34,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:34,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1030531374, now seen corresponding path program 3 times [2018-10-15 12:55:34,587 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-15 12:55:34,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:55:34,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 12:55:34,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 12:55:34,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 12:55:34,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 12:55:34,687 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2018-10-15 12:55:34,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:34,769 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2018-10-15 12:55:34,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 12:55:34,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2018-10-15 12:55:34,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:34,770 INFO L225 Difference]: With dead ends: 28 [2018-10-15 12:55:34,770 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:55:34,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-15 12:55:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:55:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:55:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:55:34,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:55:34,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-10-15 12:55:34,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:34,773 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:55:34,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 12:55:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:55:34,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:55:34,778 INFO L202 PluginConnector]: Adding new model cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:34 BasicIcfg [2018-10-15 12:55:34,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:55:34,779 INFO L168 Benchmark]: Toolchain (without parser) took 1903.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:34,781 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:55:34,782 INFO L168 Benchmark]: Boogie Preprocessor took 46.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:55:34,782 INFO L168 Benchmark]: RCFGBuilder took 330.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 12:55:34,784 INFO L168 Benchmark]: IcfgTransformer took 53.93 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 12:55:34,784 INFO L168 Benchmark]: TraceAbstraction took 1466.11 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:34,788 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 330.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 53.93 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 1466.11 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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, 20 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 19 SDslu, 141 SDs, 0 SdLazy, 72 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3915 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 22/25 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/cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_12-55-34-801.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005b_true-unreach-call_true-termination.c.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-55-34-801.csv Received shutdown request...