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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:08:49,064 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:08:49,066 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:08:49,078 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:08:49,078 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:08:49,079 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:08:49,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:08:49,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:08:49,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:08:49,085 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:08:49,086 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 21:08:49,086 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 21:08:49,087 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 21:08:49,088 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 21:08:49,089 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 21:08:49,090 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 21:08:49,091 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 21:08:49,093 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 21:08:49,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 21:08:49,097 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 21:08:49,098 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 21:08:49,099 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 21:08:49,102 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-12 21:08:49,102 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-12 21:08:49,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-12 21:08:49,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-12 21:08:49,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-12 21:08:49,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-12 21:08:49,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-12 21:08:49,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-12 21:08:49,108 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-12 21:08:49,109 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-12 21:08:49,109 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-12 21:08:49,109 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-12 21:08:49,110 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-12 21:08:49,111 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-12 21:08:49,111 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 21:08:49,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:08:49,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:08:49,123 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:08:49,123 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:08:49,123 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:08:49,123 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:08:49,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:08:49,124 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:08:49,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:08:49,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:08:49,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:08:49,125 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:08:49,126 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:08:49,127 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:08:49,127 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:08:49,169 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:08:49,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:08:49,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:08:49,188 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:08:49,189 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:08:49,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-12 21:08:49,190 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl' [2018-10-12 21:08:49,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:08:49,280 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:08:49,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:08:49,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:08:49,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:08:49,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/1) ... [2018-10-12 21:08:49,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:08:49,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:08:49,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:08:49,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:08:49,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (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 21:08:49,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:08:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:08:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:08:50,275 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:08:50,276 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:50 BoogieIcfgContainer [2018-10-12 21:08:50,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:08:50,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:08:50,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:08:50,281 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:08:50,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:08:49" (1/2) ... [2018-10-12 21:08:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6867b822 and model type openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:08:50, skipping insertion in model container [2018-10-12 21:08:50,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:08:50" (2/2) ... [2018-10-12 21:08:50,284 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl [2018-10-12 21:08:50,294 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:08:50,303 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:08:50,320 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:08:50,352 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:08:50,353 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:08:50,353 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:08:50,353 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:08:50,354 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:08:50,354 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:08:50,354 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:08:50,354 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:08:50,354 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:08:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-12 21:08:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-12 21:08:50,385 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:50,387 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] [2018-10-12 21:08:50,388 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:50,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:50,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1549736606, now seen corresponding path program 1 times [2018-10-12 21:08:50,450 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:51,555 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 21:08:51,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:08:51,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-12 21:08:51,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-12 21:08:51,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-12 21:08:51,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-10-12 21:08:51,584 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 16 states. [2018-10-12 21:08:53,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:08:53,663 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-10-12 21:08:53,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-12 21:08:53,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2018-10-12 21:08:53,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:08:53,680 INFO L225 Difference]: With dead ends: 117 [2018-10-12 21:08:53,680 INFO L226 Difference]: Without dead ends: 117 [2018-10-12 21:08:53,686 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=220, Invalid=902, Unknown=0, NotChecked=0, Total=1122 [2018-10-12 21:08:53,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-10-12 21:08:53,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 96. [2018-10-12 21:08:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-12 21:08:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-10-12 21:08:53,735 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 60 [2018-10-12 21:08:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:08:53,737 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-10-12 21:08:53,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-12 21:08:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-10-12 21:08:53,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-12 21:08:53,741 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:08:53,742 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-10-12 21:08:53,742 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:08:53,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:08:53,743 INFO L82 PathProgramCache]: Analyzing trace with hash 611485399, now seen corresponding path program 1 times [2018-10-12 21:08:53,744 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:08:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:08:54,573 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2018-10-12 21:08:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:08:55,301 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:08:55,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-10-12 21:08:55,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-12 21:08:55,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-12 21:08:55,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2018-10-12 21:08:55,305 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 26 states. [2018-10-12 21:08:56,513 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2018-10-12 21:08:56,722 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-10-12 21:08:56,925 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2018-10-12 21:08:57,794 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2018-10-12 21:08:57,952 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-12 21:08:58,317 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-12 21:08:58,498 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-12 21:08:58,691 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2018-10-12 21:08:58,998 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2018-10-12 21:08:59,238 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2018-10-12 21:08:59,404 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2018-10-12 21:08:59,535 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-12 21:08:59,691 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-12 21:09:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:00,100 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-10-12 21:09:00,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-12 21:09:00,103 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 95 [2018-10-12 21:09:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:00,107 INFO L225 Difference]: With dead ends: 152 [2018-10-12 21:09:00,108 INFO L226 Difference]: Without dead ends: 152 [2018-10-12 21:09:00,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=524, Invalid=2128, Unknown=0, NotChecked=0, Total=2652 [2018-10-12 21:09:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-10-12 21:09:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 131. [2018-10-12 21:09:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-12 21:09:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-10-12 21:09:00,138 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 95 [2018-10-12 21:09:00,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:00,138 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-10-12 21:09:00,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-12 21:09:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-10-12 21:09:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-12 21:09:00,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:00,146 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-12 21:09:00,148 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:00,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:00,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1923479230, now seen corresponding path program 2 times [2018-10-12 21:09:00,149 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:09:02,717 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:02,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-10-12 21:09:02,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-10-12 21:09:02,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-10-12 21:09:02,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=983, Unknown=0, NotChecked=0, Total=1056 [2018-10-12 21:09:02,719 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 33 states. [2018-10-12 21:09:04,059 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-10-12 21:09:04,400 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-10-12 21:09:04,681 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-10-12 21:09:05,173 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-10-12 21:09:05,371 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-12 21:09:05,598 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-10-12 21:09:06,088 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2018-10-12 21:09:06,329 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-10-12 21:09:06,918 WARN L178 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2018-10-12 21:09:07,388 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2018-10-12 21:09:07,643 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2018-10-12 21:09:07,963 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2018-10-12 21:09:08,305 WARN L178 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2018-10-12 21:09:08,842 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2018-10-12 21:09:09,169 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-10-12 21:09:09,465 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2018-10-12 21:09:09,638 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2018-10-12 21:09:10,095 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2018-10-12 21:09:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:10,274 INFO L93 Difference]: Finished difference Result 187 states and 187 transitions. [2018-10-12 21:09:10,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-12 21:09:10,274 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 130 [2018-10-12 21:09:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:10,277 INFO L225 Difference]: With dead ends: 187 [2018-10-12 21:09:10,277 INFO L226 Difference]: Without dead ends: 187 [2018-10-12 21:09:10,280 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=635, Invalid=3525, Unknown=0, NotChecked=0, Total=4160 [2018-10-12 21:09:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-10-12 21:09:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 166. [2018-10-12 21:09:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-10-12 21:09:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-10-12 21:09:10,294 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 130 [2018-10-12 21:09:10,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:10,294 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-10-12 21:09:10,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-10-12 21:09:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-10-12 21:09:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-10-12 21:09:10,297 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:09:10,298 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-12 21:09:10,298 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:09:10,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:09:10,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1272981769, now seen corresponding path program 3 times [2018-10-12 21:09:10,299 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:09:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:09:10,824 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-12 21:09:11,943 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-12 21:09:11,943 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:09:11,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-12 21:09:11,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-12 21:09:11,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-12 21:09:11,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=923, Unknown=0, NotChecked=0, Total=992 [2018-10-12 21:09:11,945 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 32 states. [2018-10-12 21:09:13,980 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-10-12 21:09:14,379 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-10-12 21:09:14,575 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-12 21:09:14,794 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-12 21:09:15,038 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2018-10-12 21:09:15,302 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2018-10-12 21:09:15,540 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-12 21:09:15,730 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2018-10-12 21:09:16,043 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-10-12 21:09:16,249 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-12 21:09:16,474 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-10-12 21:09:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:09:16,489 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-10-12 21:09:16,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-12 21:09:16,490 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 165 [2018-10-12 21:09:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:09:16,491 INFO L225 Difference]: With dead ends: 164 [2018-10-12 21:09:16,491 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:09:16,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=690, Invalid=3342, Unknown=0, NotChecked=0, Total=4032 [2018-10-12 21:09:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:09:16,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:09:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:09:16,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:09:16,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2018-10-12 21:09:16,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:09:16,495 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:09:16,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-12 21:09:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:09:16,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:09:16,501 INFO L202 PluginConnector]: Adding new model openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:09:16 BoogieIcfgContainer [2018-10-12 21:09:16,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:09:16,502 INFO L168 Benchmark]: Toolchain (without parser) took 27222.46 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -194.3 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:16,503 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:09:16,504 INFO L168 Benchmark]: Boogie Preprocessor took 68.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:09:16,504 INFO L168 Benchmark]: RCFGBuilder took 925.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. [2018-10-12 21:09:16,505 INFO L168 Benchmark]: TraceAbstraction took 26223.69 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -226.1 MB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. [2018-10-12 21:09:16,509 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 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 925.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 26223.69 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 358.1 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -226.1 MB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 167]: 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, 95 locations, 1 error locations. SAFE Result, 26.1s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 19.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 239 SDtfs, 4254 SDslu, 2935 SDs, 0 SdLazy, 3879 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1483 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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, 63 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 450 NumberOfCodeBlocks, 450 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 915179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 31/158 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_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-09-16-520.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcmp-alloca_true-valid-memsafety_true-termination.i_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-09-16-520.csv Received shutdown request...