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_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:50:01,121 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:50:01,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:50:01,135 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:50:01,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:50:01,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:50:01,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:50:01,141 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:50:01,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:50:01,151 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:50:01,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:50:01,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:50:01,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:50:01,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:50:01,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:50:01,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:50:01,165 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:50:01,171 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:50:01,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:50:01,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:50:01,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:50:01,184 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:50:01,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:50:01,206 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:50:01,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:50:01,224 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:50:01,225 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:50:01,225 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:50:01,226 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:50:01,227 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:50:01,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:50:01,228 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:50:01,228 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:50:01,228 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:50:01,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:50:01,229 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:50:01,229 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:50:01,230 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:50:01,230 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:50:01,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:50:01,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:50:01,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:50:01,295 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:50:01,296 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:50:01,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-14 16:50:01,297 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl' [2018-10-14 16:50:01,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:50:01,402 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:50:01,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:50:01,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:50:01,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:50:01,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/1) ... [2018-10-14 16:50:01,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:50:01,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:50:01,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:50:01,468 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:50:01,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (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 [2018-10-14 16:50:01,538 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:50:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:50:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:50:02,293 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:50:02,294 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:02 BoogieIcfgContainer [2018-10-14 16:50:02,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:50:02,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:50:02,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:50:02,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:50:02,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:50:01" (1/2) ... [2018-10-14 16:50:02,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fb44ae and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:50:02, skipping insertion in model container [2018-10-14 16:50:02,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:50:02" (2/2) ... [2018-10-14 16:50:02,302 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-14 16:50:02,312 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:50:02,321 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:50:02,339 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:50:02,373 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:50:02,374 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:50:02,374 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:50:02,375 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:50:02,375 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:50:02,375 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:50:02,375 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:50:02,375 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:50:02,375 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:50:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-14 16:50:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-14 16:50:02,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:02,427 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, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:50:02,429 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:02,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:02,436 INFO L82 PathProgramCache]: Analyzing trace with hash 580255520, now seen corresponding path program 1 times [2018-10-14 16:50:02,495 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:03,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:50:03,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:50:03,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:50:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:50:03,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:50:03,482 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 12 states. [2018-10-14 16:50:04,246 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-14 16:50:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:04,871 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-14 16:50:04,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:50:04,873 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2018-10-14 16:50:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:04,888 INFO L225 Difference]: With dead ends: 125 [2018-10-14 16:50:04,888 INFO L226 Difference]: Without dead ends: 125 [2018-10-14 16:50:04,891 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-14 16:50:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-14 16:50:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2018-10-14 16:50:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-14 16:50:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-14 16:50:04,958 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 73 [2018-10-14 16:50:04,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:04,959 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-14 16:50:04,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:50:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-14 16:50:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-14 16:50:04,968 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:04,968 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-14 16:50:04,969 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:04,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:04,970 INFO L82 PathProgramCache]: Analyzing trace with hash -392618884, now seen corresponding path program 1 times [2018-10-14 16:50:04,971 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:05,650 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-14 16:50:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:06,686 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:06,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-14 16:50:06,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-14 16:50:06,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-14 16:50:06,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-14 16:50:06,690 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 28 states. [2018-10-14 16:50:08,452 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-14 16:50:08,763 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-14 16:50:09,217 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-14 16:50:09,707 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-14 16:50:10,049 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-10-14 16:50:10,419 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2018-10-14 16:50:10,713 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-10-14 16:50:11,000 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-14 16:50:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:12,775 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-14 16:50:12,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-14 16:50:12,781 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 112 [2018-10-14 16:50:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:12,784 INFO L225 Difference]: With dead ends: 164 [2018-10-14 16:50:12,784 INFO L226 Difference]: Without dead ends: 164 [2018-10-14 16:50:12,786 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2018-10-14 16:50:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-14 16:50:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2018-10-14 16:50:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-10-14 16:50:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-10-14 16:50:12,805 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 112 [2018-10-14 16:50:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:12,807 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-10-14 16:50:12,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-14 16:50:12,810 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-10-14 16:50:12,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-14 16:50:12,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:12,814 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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] [2018-10-14 16:50:12,815 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:12,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:12,815 INFO L82 PathProgramCache]: Analyzing trace with hash -398332000, now seen corresponding path program 2 times [2018-10-14 16:50:12,817 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:14,265 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-14 16:50:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:50:15,848 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:15,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-14 16:50:15,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-14 16:50:15,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-14 16:50:15,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:50:15,850 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 38 states. [2018-10-14 16:50:17,531 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-14 16:50:17,844 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-14 16:50:18,178 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-14 16:50:18,463 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-14 16:50:18,640 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-14 16:50:18,890 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 16:50:19,281 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-14 16:50:19,488 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-14 16:50:20,084 WARN L179 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-14 16:50:20,552 WARN L179 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-14 16:50:21,005 WARN L179 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-14 16:50:21,291 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-14 16:50:21,537 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-14 16:50:21,827 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-14 16:50:22,310 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-14 16:50:22,767 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-14 16:50:23,217 WARN L179 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-14 16:50:23,636 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-14 16:50:23,817 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 16:50:24,091 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-14 16:50:24,358 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 16:50:24,660 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-14 16:50:24,896 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-14 16:50:25,180 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-14 16:50:25,421 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-14 16:50:25,819 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-14 16:50:26,225 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-14 16:50:26,543 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-14 16:50:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:26,621 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-14 16:50:26,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-14 16:50:26,622 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 151 [2018-10-14 16:50:26,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:26,626 INFO L225 Difference]: With dead ends: 203 [2018-10-14 16:50:26,627 INFO L226 Difference]: Without dead ends: 203 [2018-10-14 16:50:26,630 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-14 16:50:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-14 16:50:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 191. [2018-10-14 16:50:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-10-14 16:50:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2018-10-14 16:50:26,644 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 151 [2018-10-14 16:50:26,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:26,645 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2018-10-14 16:50:26,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-14 16:50:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2018-10-14 16:50:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-14 16:50:26,649 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:50:26,649 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:50:26,649 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:50:26,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:50:26,650 INFO L82 PathProgramCache]: Analyzing trace with hash 156736508, now seen corresponding path program 3 times [2018-10-14 16:50:26,651 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:50:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:50:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-14 16:50:29,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:50:29,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-14 16:50:29,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-14 16:50:29,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-14 16:50:29,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:50:29,393 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand 38 states. [2018-10-14 16:50:31,115 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-14 16:50:31,505 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-10-14 16:50:31,809 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-14 16:50:32,517 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2018-10-14 16:50:32,909 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-14 16:50:33,433 WARN L179 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-10-14 16:50:34,045 WARN L179 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2018-10-14 16:50:34,758 WARN L179 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 131 [2018-10-14 16:50:35,377 WARN L179 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2018-10-14 16:50:36,042 WARN L179 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136 [2018-10-14 16:50:36,654 WARN L179 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 133 [2018-10-14 16:50:36,882 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-14 16:50:37,228 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-14 16:50:37,900 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 16:50:38,386 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-14 16:50:38,825 WARN L179 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-14 16:50:39,100 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2018-10-14 16:50:39,515 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2018-10-14 16:50:39,937 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-10-14 16:50:40,547 WARN L179 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 126 [2018-10-14 16:50:41,185 WARN L179 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 131 [2018-10-14 16:50:41,784 WARN L179 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134 [2018-10-14 16:50:42,402 WARN L179 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2018-10-14 16:50:43,038 WARN L179 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 134 [2018-10-14 16:50:43,246 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-14 16:50:43,434 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-14 16:50:43,628 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-14 16:50:43,821 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 16:50:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:50:44,336 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-14 16:50:44,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-14 16:50:44,337 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 190 [2018-10-14 16:50:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:50:44,338 INFO L225 Difference]: With dead ends: 189 [2018-10-14 16:50:44,338 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:50:44,341 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-14 16:50:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:50:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:50:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:50:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:50:44,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-10-14 16:50:44,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:50:44,342 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:50:44,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-14 16:50:44,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:50:44,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:50:44,347 INFO L202 PluginConnector]: Adding new model openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:50:44 BoogieIcfgContainer [2018-10-14 16:50:44,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:50:44,348 INFO L168 Benchmark]: Toolchain (without parser) took 42947.14 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 142.1 MB). Peak memory consumption was 547.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:50:44,349 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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. [2018-10-14 16:50:44,350 INFO L168 Benchmark]: Boogie Preprocessor took 64.27 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. [2018-10-14 16:50:44,350 INFO L168 Benchmark]: RCFGBuilder took 826.95 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. [2018-10-14 16:50:44,351 INFO L168 Benchmark]: TraceAbstraction took 42051.83 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 110.4 MB). Peak memory consumption was 515.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:50:44,354 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 0.23 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 64.27 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 826.95 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 42051.83 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 405.3 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 110.4 MB). Peak memory consumption was 515.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 178]: 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, 102 locations, 1 error locations. SAFE Result, 41.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 33.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 5183 SDslu, 3753 SDs, 0 SdLazy, 4393 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2418 ImplicationChecksByTransitivity, 33.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 526 NumberOfCodeBlocks, 526 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 1324107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 15/234 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_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-50-44-365.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-50-44-365.csv Received shutdown request...