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/sum01_bug02_false-unreach-call_true-termination.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 13:13:47,853 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 13:13:47,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 13:13:47,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 13:13:47,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 13:13:47,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 13:13:47,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 13:13:47,872 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 13:13:47,875 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 13:13:47,876 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 13:13:47,877 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 13:13:47,920 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 13:13:47,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 13:13:47,939 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 13:13:47,940 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 13:13:47,940 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 13:13:47,941 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 13:13:47,941 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 13:13:47,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 13:13:47,942 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 13:13:47,942 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 13:13:47,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 13:13:47,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 13:13:47,942 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 13:13:47,943 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 13:13:47,943 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 13:13:47,944 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 13:13:48,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 13:13:48,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 13:13:48,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 13:13:48,019 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 13:13:48,020 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 13:13:48,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_bug02_false-unreach-call_true-termination.i_3.bpl [2018-10-15 13:13:48,021 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_bug02_false-unreach-call_true-termination.i_3.bpl' [2018-10-15 13:13:48,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 13:13:48,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 13:13:48,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 13:13:48,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 13:13:48,075 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 13:13:48,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 13:13:48,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 13:13:48,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 13:13:48,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 13:13:48,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (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 13:13:48,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 13:13:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 13:13:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 13:13:48,541 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 13:13:48,542 INFO L202 PluginConnector]: Adding new model sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:48 BoogieIcfgContainer [2018-10-15 13:13:48,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 13:13:48,542 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 13:13:48,542 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 13:13:48,543 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 13:13:48,547 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:48" (1/1) ... [2018-10-15 13:13:48,552 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 13:13:48,568 INFO L202 PluginConnector]: Adding new model sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:13:48 BasicIcfg [2018-10-15 13:13:48,568 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 13:13:48,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 13:13:48,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 13:13:48,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 13:13:48,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:13:48" (1/3) ... [2018-10-15 13:13:48,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749cfd3b and model type sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:48, skipping insertion in model container [2018-10-15 13:13:48,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:48" (2/3) ... [2018-10-15 13:13:48,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749cfd3b and model type sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:13:48, skipping insertion in model container [2018-10-15 13:13:48,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:13:48" (3/3) ... [2018-10-15 13:13:48,576 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02_false-unreach-call_true-termination.i_3.bplleft_unchanged_by_heapseparator [2018-10-15 13:13:48,587 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 13:13:48,596 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 13:13:48,614 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 13:13:48,640 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 13:13:48,641 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 13:13:48,641 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 13:13:48,641 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 13:13:48,641 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 13:13:48,642 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 13:13:48,642 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 13:13:48,642 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 13:13:48,642 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 13:13:48,655 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-15 13:13:48,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-15 13:13:48,664 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:13:48,665 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:13:48,666 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:13:48,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:13:48,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1750473911, now seen corresponding path program 1 times [2018-10-15 13:13:48,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:13:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:13:49,059 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 13:13:49,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 13:13:49,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-15 13:13:49,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 13:13:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 13:13:49,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-15 13:13:49,082 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2018-10-15 13:13:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:13:49,238 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-10-15 13:13:49,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 13:13:49,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-15 13:13:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:13:49,252 INFO L225 Difference]: With dead ends: 32 [2018-10-15 13:13:49,252 INFO L226 Difference]: Without dead ends: 27 [2018-10-15 13:13:49,254 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-15 13:13:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-15 13:13:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-10-15 13:13:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-15 13:13:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-10-15 13:13:49,288 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 15 [2018-10-15 13:13:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:13:49,289 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-10-15 13:13:49,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 13:13:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-10-15 13:13:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-15 13:13:49,290 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:13:49,290 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] [2018-10-15 13:13:49,291 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:13:49,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:13:49,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1844433218, now seen corresponding path program 1 times [2018-10-15 13:13:49,292 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:13:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:13:49,726 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-15 13:13:50,165 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-10-15 13:13:50,260 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 13:13:50,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:13:50,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 13:13:50,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 13:13:50,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 13:13:50,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-15 13:13:50,264 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 11 states. [2018-10-15 13:13:50,693 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-15 13:13:51,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:13:51,005 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-10-15 13:13:51,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 13:13:51,006 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-10-15 13:13:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:13:51,007 INFO L225 Difference]: With dead ends: 41 [2018-10-15 13:13:51,008 INFO L226 Difference]: Without dead ends: 36 [2018-10-15 13:13:51,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-15 13:13:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-15 13:13:51,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-10-15 13:13:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-15 13:13:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-15 13:13:51,016 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2018-10-15 13:13:51,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:13:51,018 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-15 13:13:51,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 13:13:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-15 13:13:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-15 13:13:51,020 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:13:51,020 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:13:51,021 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:13:51,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:13:51,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1853066089, now seen corresponding path program 2 times [2018-10-15 13:13:51,022 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:13:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:13:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-15 13:13:51,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:13:51,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 13:13:51,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 13:13:51,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 13:13:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-15 13:13:51,516 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-10-15 13:13:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:13:52,057 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-10-15 13:13:52,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 13:13:52,058 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-10-15 13:13:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:13:52,059 INFO L225 Difference]: With dead ends: 32 [2018-10-15 13:13:52,060 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 13:13:52,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-10-15 13:13:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 13:13:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 13:13:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 13:13:52,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 13:13:52,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-15 13:13:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:13:52,062 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 13:13:52,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 13:13:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 13:13:52,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 13:13:52,068 INFO L202 PluginConnector]: Adding new model sum01_bug02_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:13:52 BasicIcfg [2018-10-15 13:13:52,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 13:13:52,069 INFO L168 Benchmark]: Toolchain (without parser) took 3995.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-15 13:13:52,070 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 13:13:52,071 INFO L168 Benchmark]: Boogie Preprocessor took 48.35 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 13:13:52,072 INFO L168 Benchmark]: RCFGBuilder took 418.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 13:13:52,073 INFO L168 Benchmark]: IcfgTransformer took 25.80 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 13:13:52,074 INFO L168 Benchmark]: TraceAbstraction took 3499.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2018-10-15 13:13:52,078 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 0.20 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 48.35 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 418.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 25.80 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. * TraceAbstraction took 3499.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: 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, 26 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 67 SDslu, 236 SDs, 0 SdLazy, 238 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.1s 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 16733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/12 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/sum01_bug02_false-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_13-13-52-090.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02_false-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_13-13-52-090.csv Received shutdown request...