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-b8f97f7-m [2018-10-10 15:42:39,014 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:42:39,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:42:39,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:42:39,033 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:42:39,034 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:42:39,035 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:42:39,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:42:39,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:42:39,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:42:39,041 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:42:39,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:42:39,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:42:39,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:42:39,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:42:39,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:42:39,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:42:39,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:42:39,049 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:42:39,050 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:42:39,051 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:42:39,053 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:42:39,057 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:42:39,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:42:39,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:42:39,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:42:39,061 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:42:39,062 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:42:39,063 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:42:39,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:42:39,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:42:39,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:42:39,072 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 15:42:39,087 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:42:39,088 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:42:39,088 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:42:39,089 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:42:39,089 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:42:39,089 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:42:39,090 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:42:39,090 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:42:39,090 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:42:39,090 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:42:39,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:42:39,091 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:42:39,091 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:42:39,093 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:42:39,093 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:42:39,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:42:39,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:42:39,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:42:39,173 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:42:39,174 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:42:39,174 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-10 15:42:39,175 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl' [2018-10-10 15:42:39,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:42:39,256 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:42:39,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:42:39,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:42:39,257 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:42:39,285 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,287 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,308 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,308 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,323 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,325 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,330 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 10.10 03:42:39" (1/1) ... [2018-10-10 15:42:39,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:42:39,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:42:39,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:42:39,343 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:42:39,344 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 10.10 03:42:39" (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 15:42:39,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:42:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:42:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:42:40,257 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:42:40,259 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 10.10 03:42:40 BoogieIcfgContainer [2018-10-10 15:42:40,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:42:40,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:42:40,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:42:40,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:42:40,264 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 10.10 03:42:39" (1/2) ... [2018-10-10 15:42:40,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5216f2c7 and model type openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:42:40, skipping insertion in model container [2018-10-10 15:42:40,266 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 10.10 03:42:40" (2/2) ... [2018-10-10 15:42:40,268 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_15.bpl [2018-10-10 15:42:40,277 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:42:40,286 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:42:40,303 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:42:40,332 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:42:40,332 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:42:40,333 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:42:40,333 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:42:40,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:42:40,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:42:40,333 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:42:40,333 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:42:40,334 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:42:40,353 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-10-10 15:42:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-10 15:42:40,367 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:40,368 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] [2018-10-10 15:42:40,369 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:40,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:40,375 INFO L82 PathProgramCache]: Analyzing trace with hash 580255520, now seen corresponding path program 1 times [2018-10-10 15:42:40,423 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:41,187 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 15:42:41,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:42:41,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:42:41,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:42:41,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:42:41,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:42:41,215 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 12 states. [2018-10-10 15:42:41,566 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-10 15:42:42,018 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-10 15:42:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:42,837 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-10-10 15:42:42,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:42:42,840 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2018-10-10 15:42:42,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:42,856 INFO L225 Difference]: With dead ends: 125 [2018-10-10 15:42:42,856 INFO L226 Difference]: Without dead ends: 125 [2018-10-10 15:42:42,859 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-10 15:42:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-10-10 15:42:42,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2018-10-10 15:42:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-10-10 15:42:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-10-10 15:42:42,912 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 73 [2018-10-10 15:42:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:42,913 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-10-10 15:42:42,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:42:42,914 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-10-10 15:42:42,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-10 15:42:42,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:42,918 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] [2018-10-10 15:42:42,919 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:42,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:42,920 INFO L82 PathProgramCache]: Analyzing trace with hash -392618884, now seen corresponding path program 1 times [2018-10-10 15:42:42,921 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:43,707 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-10 15:42:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:44,727 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:44,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-10-10 15:42:44,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-10 15:42:44,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-10 15:42:44,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-10-10 15:42:44,731 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 28 states. [2018-10-10 15:42:46,793 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-10-10 15:42:47,063 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-10-10 15:42:47,483 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-10 15:42:47,942 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2018-10-10 15:42:48,270 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2018-10-10 15:42:48,645 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2018-10-10 15:42:48,924 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2018-10-10 15:42:49,240 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-10 15:42:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:51,052 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-10 15:42:51,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-10 15:42:51,054 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 112 [2018-10-10 15:42:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:51,061 INFO L225 Difference]: With dead ends: 164 [2018-10-10 15:42:51,062 INFO L226 Difference]: Without dead ends: 164 [2018-10-10 15:42:51,065 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 [2018-10-10 15:42:51,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-10 15:42:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2018-10-10 15:42:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-10-10 15:42:51,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-10-10 15:42:51,094 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 112 [2018-10-10 15:42:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:51,095 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-10-10 15:42:51,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-10 15:42:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-10-10 15:42:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-10 15:42:51,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:51,103 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] [2018-10-10 15:42:51,104 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:51,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:51,104 INFO L82 PathProgramCache]: Analyzing trace with hash -398332000, now seen corresponding path program 2 times [2018-10-10 15:42:51,105 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:52,369 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-10 15:42:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:54,153 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:54,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:42:54,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:42:54,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:42:54,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:42:54,155 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 38 states. [2018-10-10 15:42:55,849 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-10-10 15:42:56,145 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 15:42:56,507 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-10 15:42:56,807 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 15:42:56,984 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-10 15:42:57,193 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-10 15:42:57,518 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-10-10 15:42:57,730 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-10-10 15:42:58,384 WARN L178 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-10 15:42:58,927 WARN L178 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-10 15:42:59,364 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-10-10 15:42:59,687 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-10 15:42:59,932 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-10 15:43:00,247 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-10 15:43:00,708 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2018-10-10 15:43:01,169 WARN L178 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-10 15:43:01,613 WARN L178 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-10 15:43:02,030 WARN L178 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-10 15:43:02,215 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 15:43:02,434 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-10 15:43:02,636 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 15:43:02,942 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 15:43:03,159 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-10 15:43:03,441 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-10-10 15:43:03,695 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2018-10-10 15:43:03,879 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 15:43:04,210 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-10-10 15:43:04,397 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-10 15:43:04,581 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-10 15:43:04,891 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-10-10 15:43:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:04,960 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-10 15:43:04,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-10 15:43:04,961 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 151 [2018-10-10 15:43:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:04,965 INFO L225 Difference]: With dead ends: 203 [2018-10-10 15:43:04,965 INFO L226 Difference]: Without dead ends: 203 [2018-10-10 15:43:04,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1102, Invalid=5060, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 15:43:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-10 15:43:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 191. [2018-10-10 15:43:04,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-10-10 15:43:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2018-10-10 15:43:04,982 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 151 [2018-10-10 15:43:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:04,983 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2018-10-10 15:43:04,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:43:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2018-10-10 15:43:04,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-10 15:43:04,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:43:04,987 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] [2018-10-10 15:43:04,987 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:43:04,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:43:04,988 INFO L82 PathProgramCache]: Analyzing trace with hash 156736508, now seen corresponding path program 3 times [2018-10-10 15:43:04,989 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:43:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:43:06,992 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-10 15:43:06,992 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:06,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-10-10 15:43:06,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-10-10 15:43:06,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-10-10 15:43:06,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:43:06,994 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand 38 states. [2018-10-10 15:43:08,718 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-10 15:43:09,178 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-10-10 15:43:09,506 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2018-10-10 15:43:10,147 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2018-10-10 15:43:10,594 WARN L178 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2018-10-10 15:43:11,139 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-10-10 15:43:11,737 WARN L178 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2018-10-10 15:43:12,358 WARN L178 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 131 [2018-10-10 15:43:12,984 WARN L178 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2018-10-10 15:43:13,631 WARN L178 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136 [2018-10-10 15:43:14,305 WARN L178 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 133 [2018-10-10 15:43:14,534 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-10 15:43:14,886 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-10 15:43:15,554 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-10 15:43:16,033 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2018-10-10 15:43:16,468 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-10 15:43:16,746 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2018-10-10 15:43:17,094 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2018-10-10 15:43:17,540 WARN L178 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2018-10-10 15:43:18,083 WARN L178 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 126 [2018-10-10 15:43:18,711 WARN L178 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 131 [2018-10-10 15:43:19,363 WARN L178 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134 [2018-10-10 15:43:20,004 WARN L178 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2018-10-10 15:43:20,637 WARN L178 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 134 [2018-10-10 15:43:20,837 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-10 15:43:21,019 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-10 15:43:21,209 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-10 15:43:21,404 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-10 15:43:21,909 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-10 15:43:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:43:21,916 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-10 15:43:21,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-10 15:43:21,916 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 190 [2018-10-10 15:43:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:43:21,917 INFO L225 Difference]: With dead ends: 189 [2018-10-10 15:43:21,917 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:43:21,919 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=1551, Invalid=5759, Unknown=0, NotChecked=0, Total=7310 [2018-10-10 15:43:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:43:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:43:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:43:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:43:21,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-10-10 15:43:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:43:21,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:43:21,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-10-10 15:43:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:43:21,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:43:21,925 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 10.10 03:43:21 BoogieIcfgContainer [2018-10-10 15:43:21,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:43:21,926 INFO L168 Benchmark]: Toolchain (without parser) took 42671.17 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: 218.8 MB). Peak memory consumption was 624.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:21,927 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 15:43:21,928 INFO L168 Benchmark]: Boogie Preprocessor took 82.05 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 15:43:21,928 INFO L168 Benchmark]: RCFGBuilder took 920.03 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 15:43:21,929 INFO L168 Benchmark]: TraceAbstraction took 41664.75 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: 187.1 MB). Peak memory consumption was 592.4 MB. Max. memory is 7.1 GB. [2018-10-10 15:43:21,933 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 0.21 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 82.05 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 920.03 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 41664.75 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: 187.1 MB). Peak memory consumption was 592.4 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, 41.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 33.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 5183 SDslu, 3753 SDs, 0 SdLazy, 4393 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2418 ImplicationChecksByTransitivity, 32.6s 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, 0.2s SatisfiabilityAnalysisTime, 7.0s 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-0-2018-10-10_15-43-21-944.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-0-2018-10-10_15-43-21-944.csv Received shutdown request...