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/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:08:06,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:08:06,731 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:08:06,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:08:06,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:08:06,748 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:08:06,749 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:08:06,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:08:06,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:08:06,755 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:08:06,756 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:08:06,756 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:08:06,757 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:08:06,761 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:08:06,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:08:06,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:08:06,766 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:08:06,769 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:08:06,773 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:08:06,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:08:06,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:08:06,779 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:08:06,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 21:08:06,781 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 21:08:06,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 21:08:06,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 21:08:06,783 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 21:08:06,784 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 21:08:06,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 21:08:06,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 21:08:06,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 21:08:06,787 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-12 21:08:06,789 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 21:08:06,803 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:08:06,804 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:08:06,805 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:08:06,805 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:08:06,805 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:08:06,805 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:08:06,806 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:08:06,806 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:08:06,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:08:06,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:08:06,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:08:06,807 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:08:06,807 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:08:06,808 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:08:06,808 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:08:06,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:08:06,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:08:06,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:08:06,886 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:08:06,887 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:08:06,887 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-12 21:08:06,888 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl' [2018-10-12 21:08:06,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:08:06,959 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:08:06,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:08:06,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:08:06,960 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:08:06,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:06,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... [2018-10-12 21:08:07,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:08:07,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:08:07,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:08:07,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:08:07,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 21:08:07,094 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:08:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:08:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:08:07,688 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:08:07,689 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:07 BoogieIcfgContainer [2018-10-12 21:08:07,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:08:07,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:08:07,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:08:07,693 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:08:07,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:06" (1/2) ... [2018-10-12 21:08:07,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e9e9e6 and model type openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:08:07, skipping insertion in model container [2018-10-12 21:08:07,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:07" (2/2) ... [2018-10-12 21:08:07,697 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl [2018-10-12 21:08:07,707 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:08:07,716 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:08:07,732 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:08:07,757 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:08:07,758 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:08:07,758 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:08:07,758 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:08:07,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:08:07,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:08:07,759 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:08:07,759 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:08:07,759 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:08:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-12 21:08:07,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-12 21:08:07,786 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:07,787 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] [2018-10-12 21:08:07,788 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:07,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:07,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1440982301, now seen corresponding path program 1 times [2018-10-12 21:08:07,841 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:08,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:08:08,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-12 21:08:08,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-12 21:08:08,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-12 21:08:08,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-12 21:08:08,663 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 13 states. [2018-10-12 21:08:09,419 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-12 21:08:09,638 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-10-12 21:08:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:10,074 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-10-12 21:08:10,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 21:08:10,076 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-10-12 21:08:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:10,089 INFO L225 Difference]: With dead ends: 71 [2018-10-12 21:08:10,089 INFO L226 Difference]: Without dead ends: 71 [2018-10-12 21:08:10,092 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-12 21:08:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-12 21:08:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2018-10-12 21:08:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-12 21:08:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-12 21:08:10,136 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 42 [2018-10-12 21:08:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:10,136 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-12 21:08:10,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-12 21:08:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-12 21:08:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-12 21:08:10,139 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:10,140 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2018-10-12 21:08:10,140 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:10,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:10,141 INFO L82 PathProgramCache]: Analyzing trace with hash -971624712, now seen corresponding path program 1 times [2018-10-12 21:08:10,142 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:10,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:10,977 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:08:10,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-12 21:08:10,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-12 21:08:10,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-12 21:08:10,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2018-10-12 21:08:10,980 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 19 states. [2018-10-12 21:08:13,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:13,127 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-12 21:08:13,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-12 21:08:13,129 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2018-10-12 21:08:13,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:13,131 INFO L225 Difference]: With dead ends: 86 [2018-10-12 21:08:13,132 INFO L226 Difference]: Without dead ends: 86 [2018-10-12 21:08:13,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2018-10-12 21:08:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-12 21:08:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2018-10-12 21:08:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-12 21:08:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-10-12 21:08:13,144 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 57 [2018-10-12 21:08:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:13,144 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-10-12 21:08:13,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-12 21:08:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-10-12 21:08:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-12 21:08:13,147 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:13,148 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-10-12 21:08:13,148 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:13,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:13,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1706102339, now seen corresponding path program 2 times [2018-10-12 21:08:13,149 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:14,004 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:08:14,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-10-12 21:08:14,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-12 21:08:14,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-12 21:08:14,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2018-10-12 21:08:14,006 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 23 states. [2018-10-12 21:08:15,981 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-10-12 21:08:16,174 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-10-12 21:08:16,451 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-12 21:08:16,634 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-12 21:08:16,799 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-12 21:08:16,965 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-12 21:08:17,161 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-12 21:08:17,320 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-12 21:08:17,498 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2018-10-12 21:08:17,722 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-12 21:08:17,920 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-12 21:08:18,177 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-12 21:08:18,397 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-12 21:08:18,647 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-10-12 21:08:18,858 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-12 21:08:19,036 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-12 21:08:19,238 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-10-12 21:08:19,519 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-12 21:08:19,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:19,533 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-10-12 21:08:19,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-12 21:08:19,534 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 72 [2018-10-12 21:08:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:19,535 INFO L225 Difference]: With dead ends: 84 [2018-10-12 21:08:19,535 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:08:19,538 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=584, Invalid=2172, Unknown=0, NotChecked=0, Total=2756 [2018-10-12 21:08:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:08:19,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:08:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:08:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:08:19,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-10-12 21:08:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:19,540 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:08:19,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-12 21:08:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:08:19,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:08:19,544 INFO L202 PluginConnector]: Adding new model openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:08:19 BoogieIcfgContainer [2018-10-12 21:08:19,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:08:19,545 INFO L168 Benchmark]: Toolchain (without parser) took 12587.12 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 100.1 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -53.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2018-10-12 21:08:19,547 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 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. [2018-10-12 21:08:19,547 INFO L168 Benchmark]: Boogie Preprocessor took 56.69 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. [2018-10-12 21:08:19,548 INFO L168 Benchmark]: RCFGBuilder took 672.09 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. [2018-10-12 21:08:19,549 INFO L168 Benchmark]: TraceAbstraction took 11854.68 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 100.1 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -74.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2018-10-12 21:08:19,552 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 0.14 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 56.69 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 672.09 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. * TraceAbstraction took 11854.68 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 100.1 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -74.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: 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, 54 locations, 1 error locations. SAFE Result, 11.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 9.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 1196 SDslu, 1207 SDs, 0 SdLazy, 983 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 97667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 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/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-08-19-563.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-08-19-563.csv Received shutdown request...