java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:33:04,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:33:04,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:33:04,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:33:04,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:33:04,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:33:04,792 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:33:04,793 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:33:04,795 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:33:04,796 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:33:04,797 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:33:04,797 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:33:04,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:33:04,799 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:33:04,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:33:04,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:33:04,802 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:33:04,804 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:33:04,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:33:04,808 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:33:04,809 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:33:04,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:33:04,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:33:04,830 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:33:04,847 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:33:04,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:33:04,848 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:33:04,849 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:33:04,849 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:33:04,850 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:33:04,850 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:33:04,850 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:33:04,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:33:04,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:33:04,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:33:04,851 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:33:04,851 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:33:04,852 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:33:04,853 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:33:04,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:33:04,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:33:04,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:33:04,917 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:33:04,918 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:33:04,918 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-10 15:33:04,919 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-10 15:33:04,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:33:04,984 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:33:04,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:33:04,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:33:04,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:33:05,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/1) ... [2018-10-10 15:33:05,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:33:05,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:33:05,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:33:05,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:33:05,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (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 [2018-10-10 15:33:05,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:33:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:33:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:33:05,819 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:33:05,820 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:33:05 BoogieIcfgContainer [2018-10-10 15:33:05,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:33:05,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:33:05,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:33:05,825 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:33:05,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:33:04" (1/2) ... [2018-10-10 15:33:05,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2cd1ac and model type diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:33:05, skipping insertion in model container [2018-10-10 15:33:05,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:33:05" (2/2) ... [2018-10-10 15:33:05,829 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-10 15:33:05,839 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:33:05,851 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:33:05,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:33:05,899 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:33:05,900 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:33:05,900 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:33:05,901 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:33:05,901 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:33:05,901 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:33:05,901 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:33:05,901 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:33:05,901 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:33:05,922 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-10-10 15:33:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-10 15:33:05,933 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:33:05,935 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:33:05,936 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:33:05,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:33:05,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1888889440, now seen corresponding path program 1 times [2018-10-10 15:33:06,008 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:33:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:33:07,646 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:33:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:33:07,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:33:07,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-10-10 15:33:07,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-10 15:33:07,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-10 15:33:07,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:33:07,801 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 20 states. [2018-10-10 15:33:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:33:09,853 INFO L93 Difference]: Finished difference Result 129 states and 133 transitions. [2018-10-10 15:33:09,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-10 15:33:09,855 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-10-10 15:33:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:33:09,871 INFO L225 Difference]: With dead ends: 129 [2018-10-10 15:33:09,871 INFO L226 Difference]: Without dead ends: 129 [2018-10-10 15:33:09,874 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=337, Invalid=1223, Unknown=0, NotChecked=0, Total=1560 [2018-10-10 15:33:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-10 15:33:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 112. [2018-10-10 15:33:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-10 15:33:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2018-10-10 15:33:09,920 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 66 [2018-10-10 15:33:09,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:33:09,921 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2018-10-10 15:33:09,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-10 15:33:09,922 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2018-10-10 15:33:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-10 15:33:09,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:33:09,925 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:33:09,925 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:33:09,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:33:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1821624552, now seen corresponding path program 1 times [2018-10-10 15:33:09,927 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:33:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:33:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:33:10,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:33:10,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 15:33:10,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 15:33:10,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 15:33:10,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:33:10,012 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand 3 states. [2018-10-10 15:33:10,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:33:10,057 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2018-10-10 15:33:10,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 15:33:10,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2018-10-10 15:33:10,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:33:10,061 INFO L225 Difference]: With dead ends: 115 [2018-10-10 15:33:10,061 INFO L226 Difference]: Without dead ends: 114 [2018-10-10 15:33:10,062 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 [2018-10-10 15:33:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-10 15:33:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-10-10 15:33:10,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-10-10 15:33:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2018-10-10 15:33:10,073 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 74 [2018-10-10 15:33:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:33:10,073 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2018-10-10 15:33:10,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 15:33:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2018-10-10 15:33:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-10 15:33:10,076 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:33:10,077 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:33:10,077 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:33:10,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:33:10,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1005090958, now seen corresponding path program 1 times [2018-10-10 15:33:10,078 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:33:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:33:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:33:11,091 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:33:11,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-10 15:33:11,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-10 15:33:11,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-10 15:33:11,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:33:11,093 INFO L87 Difference]: Start difference. First operand 114 states and 116 transitions. Second operand 24 states. [2018-10-10 15:33:12,546 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-10-10 15:33:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:33:13,613 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2018-10-10 15:33:13,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-10 15:33:13,616 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 95 [2018-10-10 15:33:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:33:13,618 INFO L225 Difference]: With dead ends: 146 [2018-10-10 15:33:13,618 INFO L226 Difference]: Without dead ends: 146 [2018-10-10 15:33:13,620 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=409, Invalid=1847, Unknown=0, NotChecked=0, Total=2256 [2018-10-10 15:33:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-10-10 15:33:13,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2018-10-10 15:33:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-10 15:33:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 146 transitions. [2018-10-10 15:33:13,630 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 146 transitions. Word has length 95 [2018-10-10 15:33:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:33:13,631 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 146 transitions. [2018-10-10 15:33:13,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-10 15:33:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 146 transitions. [2018-10-10 15:33:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-10 15:33:13,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:33:13,633 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:33:13,634 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:33:13,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:33:13,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1833739360, now seen corresponding path program 2 times [2018-10-10 15:33:13,635 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:33:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:33:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-10 15:33:14,563 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:33:14,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 15:33:14,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 15:33:14,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 15:33:14,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:33:14,565 INFO L87 Difference]: Start difference. First operand 143 states and 146 transitions. Second operand 27 states. [2018-10-10 15:33:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:33:17,262 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2018-10-10 15:33:17,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-10-10 15:33:17,264 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 124 [2018-10-10 15:33:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:33:17,265 INFO L225 Difference]: With dead ends: 144 [2018-10-10 15:33:17,265 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:33:17,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2018-10-10 15:33:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:33:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:33:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:33:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:33:17,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2018-10-10 15:33:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:33:17,268 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:33:17,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 15:33:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:33:17,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:33:17,274 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:33:17 BoogieIcfgContainer [2018-10-10 15:33:17,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:33:17,275 INFO L168 Benchmark]: Toolchain (without parser) took 12292.53 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 26.2 MB). Free memory was 1.5 GB in the beginning and 955.6 MB in the end (delta: 514.2 MB). Peak memory consumption was 540.4 MB. Max. memory is 7.1 GB. [2018-10-10 15:33:17,277 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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. [2018-10-10 15:33:17,278 INFO L168 Benchmark]: Boogie Preprocessor took 62.99 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. [2018-10-10 15:33:17,278 INFO L168 Benchmark]: RCFGBuilder took 771.94 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:33:17,280 INFO L168 Benchmark]: TraceAbstraction took 11453.62 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 26.2 MB). Free memory was 1.4 GB in the beginning and 955.6 MB in the end (delta: 482.5 MB). Peak memory consumption was 508.7 MB. Max. memory is 7.1 GB. [2018-10-10 15:33:17,284 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 0.15 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 62.99 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 771.94 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11453.62 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 26.2 MB). Free memory was 1.4 GB in the beginning and 955.6 MB in the end (delta: 482.5 MB). Peak memory consumption was 508.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: 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, 90 locations, 1 error locations. SAFE Result, 11.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 7.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 312 SDtfs, 2857 SDslu, 2216 SDs, 0 SdLazy, 1972 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=3, 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, 4 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 341435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/62 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/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-33-17-296.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-33-17-296.csv Received shutdown request...