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/20181015-LoopsPathprograms/bhmr2007_true-unreach-call_true-termination.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:26:24,045 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:26:24,047 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:26:24,064 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:26:24,065 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:26:24,066 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:26:24,067 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:26:24,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:26:24,071 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:26:24,072 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:26:24,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:26:24,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:26:24,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:26:24,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:26:24,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:26:24,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:26:24,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:26:24,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:26:24,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:26:24,092 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:26:24,093 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:26:24,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:26:24,098 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-15 12:26:24,115 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 12:26:24,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:26:24,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:26:24,137 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:26:24,137 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:26:24,137 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:26:24,137 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:26:24,138 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:26:24,139 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:26:24,139 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:26:24,139 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:26:24,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:26:24,139 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:26:24,140 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:26:24,141 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:26:24,141 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:26:24,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:26:24,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:26:24,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:26:24,239 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:26:24,240 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:26:24,241 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/bhmr2007_true-unreach-call_true-termination.c.i_3.bpl [2018-10-15 12:26:24,241 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/bhmr2007_true-unreach-call_true-termination.c.i_3.bpl' [2018-10-15 12:26:24,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:26:24,298 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 12:26:24,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:26:24,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:26:24,299 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:26:24,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/1) ... [2018-10-15 12:26:24,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:26:24,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:26:24,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:26:24,348 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:26:24,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (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 12:26:24,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:26:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:26:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:26:24,793 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:26:24,794 INFO L202 PluginConnector]: Adding new model bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:26:24 BoogieIcfgContainer [2018-10-15 12:26:24,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:26:24,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:26:24,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:26:24,799 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:26:24,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:24" (1/2) ... [2018-10-15 12:26:24,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a718139 and model type bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:26:24, skipping insertion in model container [2018-10-15 12:26:24,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:26:24" (2/2) ... [2018-10-15 12:26:24,803 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i_3.bpl [2018-10-15 12:26:24,814 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:26:24,825 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:26:24,843 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:26:24,874 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:26:24,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:26:24,875 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:26:24,876 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:26:24,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:26:24,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:26:24,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:26:24,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:26:24,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:26:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-10-15 12:26:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-15 12:26:24,905 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:24,907 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 12:26:24,908 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:24,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1479218927, now seen corresponding path program 1 times [2018-10-15 12:26:24,984 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:25,447 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-10-15 12:26:25,752 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-15 12:26:25,937 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 12:26:25,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:26:25,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-15 12:26:25,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 12:26:25,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 12:26:25,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-15 12:26:25,962 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 10 states. [2018-10-15 12:26:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:26,540 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-10-15 12:26:26,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-15 12:26:26,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2018-10-15 12:26:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:26,555 INFO L225 Difference]: With dead ends: 37 [2018-10-15 12:26:26,555 INFO L226 Difference]: Without dead ends: 33 [2018-10-15 12:26:26,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-10-15 12:26:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-15 12:26:26,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2018-10-15 12:26:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 12:26:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 12:26:26,596 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 19 [2018-10-15 12:26:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:26,597 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 12:26:26,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 12:26:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 12:26:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 12:26:26,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:26,599 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] [2018-10-15 12:26:26,600 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:26,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:26,601 INFO L82 PathProgramCache]: Analyzing trace with hash -740518783, now seen corresponding path program 1 times [2018-10-15 12:26:26,602 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:27,068 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-10-15 12:26:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:27,356 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:27,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-15 12:26:27,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 12:26:27,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 12:26:27,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-10-15 12:26:27,360 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 12 states. [2018-10-15 12:26:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:27,884 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-10-15 12:26:27,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 12:26:27,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-10-15 12:26:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:27,887 INFO L225 Difference]: With dead ends: 42 [2018-10-15 12:26:27,887 INFO L226 Difference]: Without dead ends: 38 [2018-10-15 12:26:27,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-10-15 12:26:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-15 12:26:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-10-15 12:26:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-15 12:26:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-15 12:26:27,894 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 26 [2018-10-15 12:26:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:27,894 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-15 12:26:27,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 12:26:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-15 12:26:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-15 12:26:27,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:27,896 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, 1, 1, 1, 1, 1] [2018-10-15 12:26:27,896 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:27,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1030892305, now seen corresponding path program 2 times [2018-10-15 12:26:27,898 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:28,425 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2018-10-15 12:26:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-15 12:26:28,505 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:28,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 12:26:28,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 12:26:28,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 12:26:28,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-15 12:26:28,507 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-10-15 12:26:29,121 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-15 12:26:29,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:29,227 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-10-15 12:26:29,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-15 12:26:29,228 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-10-15 12:26:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:29,229 INFO L225 Difference]: With dead ends: 32 [2018-10-15 12:26:29,229 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:26:29,230 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2018-10-15 12:26:29,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:26:29,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:26:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:26:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:26:29,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-15 12:26:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:29,231 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:26:29,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 12:26:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:26:29,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:26:29,238 INFO L202 PluginConnector]: Adding new model bhmr2007_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:26:29 BoogieIcfgContainer [2018-10-15 12:26:29,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:26:29,239 INFO L168 Benchmark]: Toolchain (without parser) took 4941.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. [2018-10-15 12:26:29,240 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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 12:26:29,241 INFO L168 Benchmark]: Boogie Preprocessor took 48.13 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 12:26:29,242 INFO L168 Benchmark]: RCFGBuilder took 446.38 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 12:26:29,243 INFO L168 Benchmark]: TraceAbstraction took 4442.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. [2018-10-15 12:26:29,247 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 0.24 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 48.13 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 446.38 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. * TraceAbstraction took 4442.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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, 28 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 128 SDslu, 257 SDs, 0 SdLazy, 297 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 21190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/10 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/bhmr2007_true-unreach-call_true-termination.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_12-26-29-258.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/bhmr2007_true-unreach-call_true-termination.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-26-29-258.csv Received shutdown request...